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We've tested many dozens of sleeping bags from brands like Mountain Hardwear, Feathered Friends, Western Mountaineering, REI, Big Agnes, and more to help you home in on the perfect sleep companion for your next adventure
We test each sleeping bag on nights out in the wild in the environments they're designed for.
Credit: Elizabeth White
By Ian McEleney ⋅ Review Editor ⋅ Updated May 16, 2026
A sleeping bag design is a key component that can make or break for experience during overnight stays or extended trips into the backcountry. There are many different designs to choose from, whether you're willing to invest in the top-of-the-line construction or after a budget-friendly option.
Since 2010, our team has tested 250+ of the most popular sleeping bags in the field, carrying them on family camping trips, fast and light backpacking adventures, and remote winter expeditions. Options vary widely, with different materials, weights, and warmth ratings, demonstrating that there is no one-size-fits-all.
Our favorite sleeping bag for car camping is the Alps OutdoorZ Redwood. It's rugged yet comfortable, has a cozy flannel interior, and is quite warm. Backpackers seeking a lightweight, comfortable, and warm bag should check out our favorites, the unisex Western Mountaineering MegaLite or the Western Mountaineering AlpinLite, a perfect shorter size bag for women.
If you're looking to customize your sleeping bag to best suit the dimensions of your body shape and preference, we highly recommend REI Magma 15.
If you only camp a few times a year, you can likely get by with a budget bag like the Coleman Brazos for car camping or the lighter weight, down-filled Exped Terra 15 for backpacking trips.
Editor's Note: We updated our sleeping bag review on May 17, 2026, to include two new award-winning down sleeping bags.
Who it is best for: The Alps OutdoorZ Redwood is our top choice for anyone who wants a warm, roomy, and durable classic sleeping bag. If the idea of sleeping under a pile of thick blankets in a log cabin on a cold winter night is appealing, this is the option that brings that rustic vibe to your tent. Featuring a sturdy cotton canvas shell with a cozy flannel liner, the standout feature of the Redwood is its warmth, making it great for those who tend to sleep cold and prefer extra covers at home. It has a -10°F rating, provided by loads of TechLoft insulation, and although we wouldn't recommend it down to quite that frigid of a temp, it proved capable of keeping us warm into the single digits.
Why we love it: Our testers found the Alps OutdoorZ Redwood's spacious dimensions and rectangular shape super comfortable. The large dimensions also make this bag extra versatile when unzipped. “I like that the Redwood doubles as an excellent picnic blanket or a heavy quilt for two people to snuggle up,” said our lead tester. The rugged materials make this bag heavy-duty enough to do it all without worries of rips, tears, or snagged zippers. On our first overnighter with the OutdoorZ Redwood, temperatures dropped to a chilly 25 degrees. Yet we stayed toasty warm. Details like double draft tubes and offset stitching patterns reduce heat loss from even the smallest cracks.
Should you buy it? If you often camp at higher elevations, in cooler climates, or like to extend your camping trips as far into the fall season as temperatures allow, then the Redwood is a great option. It is our overall favorite sleeping bag for camping near civilization, but it's not well-suited for backpacking. With an enormous packed size and weighing nearly 12 pounds on the scale, it's far too bulky and heavy to carry any significant distance. Of course, if you prefer to carry your gear on your back to venture deep into the backcountry, you'll probably want to select a dedicated backpacking sleeping bag. Still, this is the bag we recommend most to our friends and family who are looking for warm and roomy sleeping bags.
The ALPS OutdoorZ Redwood is a great choice for those seeking warmth into temperatures that dip into the single digits. The large dimensions increase versatility, while the heavyweight design allows you to get a jump start on the camping season. Credit: Jason Wanlass
Who it is best for: Year after year, the Coleman Brazos has stood the test of time as one of the best budget-friendly sleeping bags available. It continues to impress us with its rugged durability and warmth, especially considering the stiff competition in the world of sleeping bags. As one of our reviewers noted, “This is an ideal choice for anyone who needs a budget bag for that first camping trip or for families who want to load up on sleeping bags for the kids, friends, or extended family.”
Why we love it: At this price point, we weren't expecting greatness from the Coleman Brazos. However, we were pleasantly surprised by the warmth of this bag when we used it on a few chilly nights in Bryce Canyon National Park. It earned an above-average rating in our warmth testing, outscoring a few other bags in this metric. While we don't recommend it for truly frigid camp nights, it's got you covered through the normal camping season of late spring, summer, and early fall.
Should you buy it? This is definitely a budget bag, but sometimes, that's exactly what you need. If you are outfitting an entire household for your first family camp trip and want something to get everyone out the door, then the Brazos is a great option. Although it lacks some of the comfort and rugged build quality found in higher-end models, we were pleasantly surprised at how well it retains warmth. We think it would also be a good choice for backyard campers, RVs, or camper vans, where you don't need as much protection. It also has a smaller fit (75"), so it may not be the right choice for tall or broad-shouldered individuals. However, for anyone on a tight budget who just wants to get out under the stars from time to time, there really isn't a good reason not to have the Brazos in your camping gear arsenal.
If you're after a budget-friendly sleeping bag, the Brazos is tough to beat. While it lacks some quality and comfort when compared with the most luxurious options in our lineup, it's maintains warmth and more supplies a more affordable way to enjoy the outdoors. Credit: Jason Wanlass
Who it is best for: Weighing in at a super light 1.5 pounds, the Western Mountaineering MegaLite is the best sleeping bag for backpacking trips. This ultra-premium model utilizes 12 ounces of 850+ fill power to create a cozy down cocoon of outstanding comfort. This amount of insulation makes it great for backpackers heading out on spring, summer, or fall treks far from the trailhead parking lot. Western Mountaineering bags are made in the USA, and the materials and construction are of high quality throughout.
Why we love it: The MegaLite's warmth-to-weight ratio is impressive, making this bag especially appealing to the diehard backpackers on our test team. Plus, our testers appreciated the more generous dimensions of the MegaLite compared to other products at its price point. The extra space makes for a bit more comfort while sleeping, but it also makes it suitable for larger backpackers. How good is it? Our lead tester puts it this way: “The MegaLite is my first choice for high-alpine route backpacking trips where I know I'll face cold nights.”
Should you buy it? The biggest issue most shoppers will have with the MegaLite is the cost. Not everyone can afford to invest in top-tier gear that will last over many seasons of heavy use. Beginners or occasional backpackers will likely be happier with a budget model that sells at half the price. Serious backpackers, however, should really consider spending extra for the MegaLite. Bags from specialty manufacturers usually cost more even than high-end models from other companies, but in our opinion, they often greatly outperform the competition.
Who it is best for: The Western Mountaineering AlpinLite quickly became the overall favorite of our female testing team, thanks to its responsibly sourced, warm 850+ FP down construction and basic components that enhance comfort without adding weight. This bag weighs a modest 1.85 ounces, which compresses super well despite its high loft. The ripstop nylon shell, along with ample down baffles, feels great next to our skin, while the baffles along the neck and the main zipper prevent cold air from entering. The unique, continuous baffle system allows us to redistribute down insulation from front to back throughout the length of the bag if temperatures drop, keeping body heat from escaping when an insulation sleeping pad is underneath the bag. We love the cozy feel of this high loft construction and find ourselves reaching for it the most when headed deep into the backcountry with the assurance of cozy warmth for a great night's sleep.
Why we love it: This bag is packed with more down feathers than most bags, and it has a substantial draft collar. These features work together to prevent cold air from entering the bag around the neck and along the main zipper. Similarly, the thoughtfully constructed zipper guard and beefy zipper prevent snags when hopping in and out. We love this durable zipper rather than ultralight options that are prone to breaking and require replacement, especially since nothing is worse than a broken zipper deep in the backcountry. Although the Alpinlite is unisex and includes no features tailored specifically to women, in its smallest size (5'6"), it delivers a top-of-the-line performance across the board. It's wonderfully warm, and we saw little evidence of vulnerabilities or other wear and tear despite a full season of use at the Search and Rescue site in Yosemite Valley. Even after several backcountry nights spent scraping against abrasive sandstone and granite, this bag stood strong thanks to its durable nylon outer shell. Lead tester, Trish Matheny, notes, “I love that the spacious mummy shape is extra warm but doesn't leave me feeling overly constricted.”
Should you buy it? If you need a roomy ultralight bag that will keep you extra warm on long, cold adventures, and is durable enough to hold up in any setting, we highly recommend the Alpinlite. The fit for our 5'6" lead tester was perfect, providing a cozy and warm cocoon that has protected her season after season. If you're someone who plans to spent a lot of time in the backcountry and are willing to pay for the price of comfort, this is the bag to get. We feel its high-quality, cozy design is worth the investment. All told, the AlpinLite is hard to beat.
Our female testers love the AlpinLite for its lightweight and packable 850+ FP Down construction along with excellent sizing options that help eliminate draft and excess weight on the trail. Credit: Trish Matheny
Who it is best for:REI Magma 15 is best for those seeking a super comfortable and lofty down sleeping bag with a highly customizable fit to eliminate excess draft and weight in your pack. It's more affordable than most down bags yet maintains a luxurious feel through a silky interior, a larger footbox, and a functional, yet cozy hood. In order to keep the design light and packable, it doesn't have a ton of extra features, but it still includes a stash pocket, the ability to tighten the hood when the temperatures drop, as well as a durable, anti-snag, two-way zipper that helps with ventilation. If you're after a down bag that provides inclusive sizing and a more custom fit, the Magma is at the top of our list.
Why we love it: We love the Magma 15 for its inclusive sizing options that allow you to select from up to nine different combinations to optimize the fit based on your body shape and preference. The warm, 850 FP waterproof goose down combines with a water-resistant (DWR) finish to keep the feathers lofty. The unique chest zipper makes it easier to enter and then exit when nature inconveniently calls in the middle of a cold night. The main two-way zipper is functional and durable, and the overall length is longer than most, allowing us to ventilate the bag during warmer nights when we'd rather throw a leg outside the bag to cool ourselves off. Strategic baffles at the neck, around the hood, and along the main zipper combine with custom sizing to help eliminate draft within the interior, while an internal stash pocket helps you keep track of some essentials typically lost in the dark. Our tester, who moves a ton in her sleep, just found herself wishing the pocket had a zipper to secure her lip balm and headlamp more securely, as items would get loose in the night as she shifted her position.
Should you buy it? We appreciate the extra length in the zipper that makes it easy to kick a leg out when temperatures are warmer or zip it together with another bag. And while we noticed that the stash pocket was less secure without a zipper, this was only noticeable on nights when we truly tossed and turned. As one tester noted, “without a zipper to secure my headlamp, I found that it would fall out of the pocket as I moved throughout the night.” Overall, this is the sleeping bag we recommend for anyone seeking a custom fit bag with nine unique sizing configurations that combines excellent loft and a cozy interior for a great night's sleep. The design is lightweight and packable for use in the backcountry or near your car campsite. We think it's worth the investment for one of the most custom designs on the market today. It's versatile for car camping or backpacking thanks to its relatively lightweight, highly compressible construction.
Weight: 2.36 lbs (medium narrow) | Insulation: 850 Fill Goose Down
The Magma 15 is a great choice for those seeking the deluxe performance of a down construction without breaking the bank. This more affordable design is also easy to customize to the shape of your body, providing up to 9 different configurations for you to choose from. Credit: Trish Matheny
Who it is best for: The Exped Terra 15 is an excellent choice for anyone who splits time between backcountry overnights and front-country car camping. It's incredibly comfortable, with numerous features that further enhance its warmth, and it offers plenty of room to roll around. It's a smart pick for side sleepers who find many mummy bags too restrictive, thanks to a more generous cut at the shoulders and a decently sized footbox. If you want a versatile down bag at a great price that can do a little bit of everything, the Terra 15 fits the bill.
Why we love it: This bag delivers exceptional warmth for the price, keeping our testers comfy during freezing nights. Details like a thick draft collar, a dual-drawcord hood-and-collar system, an anti-snag glow-in-the-dark zipper, a zippered interior stash pocket, and a sturdy compression sack genuinely improve life on the trail. Unlike many budget-minded bags that feel stripped down, this one feels thoughtfully engineered and surprisingly comfortable. The roomy interior, soft fabrics, and plush down insulation help it feel cozy and inviting night after night.
Should you buy it? The Exped Terra 15 offers a compelling blend of warmth, comfort, and value, making it easy to recommend as an all-around sleeping bag. It isn't the lightest or smallest option for backpacking, so ounce counters and long-distance thru-hikers will likely want to look elsewhere. But for most campers and backpackers, those tradeoffs are minor compared to what you gain in warmth, livability, and versatility. If you're looking for one dependable bag that can cover backpacking trips, car camping weekends, and cold nights in the spring and fall, the Terra 15 is a high-value buy.
Lower Limit Temperature Rating: 12°F | Weight: 2.8 pounds
The Exped Terra 15 is a supremely warm and comfortable down sleeping bag. Plus, it comes loaded with features like a high-quality anti-snag zipper, a large zippered pocket, and a robust compression sack. Credit: Arthur McMahon
Best Value for a Female-Specific Down Sleeping Bag
Who it is best for: The Kelty Cosmic Down 20 review is the perfect down sleeping bag for those after the warmth and comfort of down without the mega price tag. The 550 FP duck down includes a hydrophobic treatment to help the bag resist moisture and maintain loft, while the thin nylon outer shell includes a PFC-free finish to increase water resistance and durability. The bag also features a durable two-way zipper and a small zippered stash pocket for stowing essentials in a convenient location that's easy to find in the dark. Although pretty basic in quality and features, the Cosmic is worth checking out if you are after a more affordable sleeping bag design and don't need the lightest and most packable bag on the market.
Why we love it: We love the women's specific features that contour to the shape of the female body, with narrower shoulders, extra spacing in the hips, and extra insulation in the footbox and hood for a warmer night's sleep. “The bag's dimensions were perfect for my body, eliminating draft through a slim fit, but it would be hard to imagine anyone taller than me fitting comfortably inside,” says one tester. Unfortunately, the Cosmic 20 is only available in one size that is advertised to fit ladies up to 5'8", but we thought we were maxing it out at only 5'6". If this sizing works for your body, we think you'll love the warmth and comfort provided by the silky interior fabric and hydrophobic down. We also love the hydrophobic or dry down treatment that combines with a DWR treatment on the outer shell of the bag, making it a better choice for those who plan to sleep in wet climates or without shelter. These treatments helped the bag maintain loft (and overall warmth) while resisting dew and precipitation during spring camping trips into the backcountry.
Should you buy it?: If you plan on taking shorter backpacking trips or car camping close to your rig, you're gonna love the Cosmic 20 for its women's specific fit and cozy next to skin feel. That said, the one-size-fits-all may not be the best fit for your body shape and height. The overall packed size of the bag can be mitigated and further compressed if you're also willing to invest in an aftermarket stuff sack, but that won't change the heavyweight construction that is among the heaviest bags in our comprehensive lineup. If you're on a budget and after the luxurious experience of a down construction that combines women's specific features with additional insulation for a better night's sleep, we highly recommend this bag. It's great for mellow backpacking trips in cooler temperatures.
The Cosmic Down 20 is a great choice for ladies interested in a down sleeping bag construction without the hefty price tag. So long as the one size fits all design and heavyweight construction aren't dealbreakers, you're gonna love the warmth and comfort provided by the hydrophobic down construction. Credit: Trish Matheny
Who it is best for: The Coleman Heritage Big and Tall 10 is our favorite all-around camping bag for big and tall campers. At a full 3-feet wide when zipped, it gives large campers room to roll over and smaller campers space to sprawl. With its flannel-style liner, the look and feel evoke a classic vibe while the generous insulation overperforms on cold nights. While it's great for large adults or rapidly growing teens, it's outstanding for smaller or shorter sleepers who like plenty of room to move in the night.
Why we love it: Many inexpensive bags don't live up to their manufacturer's stated warmth ratings, but the Coleman Heritage Big and Tall 10 kept us quite warm. “On a frigid night while camping in the Sierra Nevada mountains, this bag kept me toasty even in temperatures that dropped well below its 10-degree Fahrenheit rating,” reported tester Chris McNamara. “That's impressive, particularly at its budget-friendly price point.”
Should you buy it? If you're looking for a warm and cozy bag that's large enough for bigger adults, the value is quite good. The most annoying issue is the lack of a stuff sack, made even worse by the fact that the strings for rolling and securing it are thin and hard to use, prompting us to use cam straps instead. Still, for the price, we're quite pleased with this Coleman bag's performance.
Temperature Rating: 10°F | Weight: 8.1 pounds
Spacious and cozy, the Coleman Heritage Big and Tall 10 is a great value, though we must admit we're annoyed by the cheap strings when rolling it up.
Who it is best for: If you're finding that the enjoyment of your backpacking trips is dulled at the end of the day by the aches and pains of carrying a heavy pack, maybe it's time to consider going ultralight. The Sea to Summit Spark 30 is an exemplary summer-weight mummy bag that comes in at a breathtaking 17 ounces. With its included compression sack, it will pack down so small that it almost disappears in your pack, making it our top choice for serious ounce-counters who still want to sleep warm out on the trail.
Why we love it: “More than once, I had to double-check inside my pack and make sure that I hadn't forgotten the Spark 30 at the campsite!” jokes our ultralight reviewer. Fluffed back up, the Spark 30 features 9.3 ounces of some of the highest quality RDS-certified, Ultra-Dry goose down available for a restful night's sleep. A well-designed plow on the half-zipper prevents zipper snags, and snaps around the hood allow you to easily dump heat when needed. While many other ultralight sleeping bags cut weight by slimming down their profiles, the Spark 30 was roomy enough for our muscular, 190 lb, 5'11" lead tester.
Should you buy it? If you're considering joining the ultralight crowd, be aware that lightweight gear often comes with a few compromises. The minimalist Spark 30 is far from inexpensive, primarily due to its use of high-quality, high-performance materials. Additionally, a little extra care needs to be taken when handling this sleeping bag, given that the very thin 10D fabric simply won't withstand abuse as well as bags made from heavier fabrics. “You'll want to bring along a different sleeping bag for car camping trips,” explains our tester. “The Spark 30 is worth special treatment, so that you can depend on its performance for your multi-week, dream backpacking trip.”
The Sea to Summit Spark 30 is a solid consideration for those aging backcountry enthusiasts who are curious about lightening their loads for a more enjoyable backpacking experience. This ultralight design weighs just one pound while providing ample features for comfort in cooler weather. Credit: Justin Simoni
Who it is best for: If you're looking for outstanding quality that will keep you warm while camping or backpacking in the winter, the Western Mountaineering Kodiak MF packs in plenty of high-performance down insulation to keep cold-weather campers cozy. Its high-quality 850 fill power goose down was some of the best at maintaining excellent loft despite being repeatedly compressed. Made in the USA, the overall construction is nearly perfect. The smooth liner with super-stuffed baffles made slipping into this bag feel like we were sleeping in a cocoon spun from the silky threads of pure awesomeness.
Why we love it: “I was blown away by how comfortable and warm I was in such a packable, lightweight bag,” our tester remarked. It's only 2.85 pounds, which is quite light for such a warm bag (some of its rivals in our cold weather sleeping bag review weighed up to 4.5 pounds). Our testers believe it truly lived up to its 0°F temperature rating. They were also delighted with the wider dimensions of this bag compared to many other winter bags.
Should you buy it? The only reason this bag isn't in everyone's backpack is the eye-watering price point. The high-end down insulation used throughout is an expensive material, resulting in a price tag that many will balk at. We should emphasize, however, that Western Mountaineering's down does seem to maintain its loft better than down from many other companies. That means this bag offers a long-term value advantage. If you know you'll be winter camping frequently over the next decade and have the funds to invest, give the Kodiak MF some serious consideration.
The Kodiak MF is our favorite sleeping bag design when it comes to cold winter conditions thanks to the relatively lightweight and lofty 850 FP down construction. Credit: Clark Tate
Who it is best for: The Teton Sports Polara 3-in-1 is a highly versatile 3-in-1 sleeping bag with a removable interior liner made out of warm fleece tucked inside a durable outer shell. Each part of this customizable bag is uniquely separate and can be changed out, removed, or added back in, making it suitable for a wide variety of temperatures and camping situations. “The Polara is great for diehard campers, boaters, hunters, or RV enthusiasts who want the ability to customize their setup based on the temperatures they are sleeping in,” explained tester Jason Wanlass.
Why we love it: This large sleeping bag is roomy and cozy, and it lets us add and remove layers to dial in the perfect amount of warmth for the conditions outside our tents. Instead of using heat management methods that force us to stick our feet out, open zippers, or throw back top layers, we could sleep all night long without needing to wake up to make adjustments. We also appreciated the thoughtful features, such as handy pockets, snaps, loops, and zippers, and the excellent price point.
Should you buy it? The Polara features synthetic insulation that simply isn't as plush or comfy as many of the premium options on the market. And while the inner liner is warm and soft, the material is grabby compared to smoother fabrics, so it sometimes catches on fuzzy base layers or camp pajamas. Lastly, this bag runs a bit small for the big and tall folks. Otherwise, the Polara is a versatile choice for those who camp in chilly seasons as well as on warm summer nights.
The Teton Sports Polara 3-in-1 is the most versatile sleeping bag that we've tested thanks to its customizable design that can be modified to your preferences depending on the current weather conditions. The bag is spacious, and includes a cozy fleece liner for ample comfort. Credit: Jason Wanlass
Who it is best for: If you would like to make snuggling part of your next camping trip, check out the Kelty Tru.Comfort 20 Doublewide. This two-person option is our favorite sleeping bag for couples, offering nearly 37 square feet of cozy sleep space. This is also a great choice for families looking to pair up into a comfortable sleeping system for their next car or RV camping trips. The bag is also available for a reasonable price, making this unique level of comfort for approachable for couples and families who plan on spending more quality time at the campsite throughout the summer season.
Why we love it: Unlike two bags that you might just zip together, the Tru.Comfort 20 Doublewide features two built-in blankets, allowing either sleeper to adjust their warmth during the night. The built-in blankets also reduce cold air drafts that can gather at the center of a double bag that's been zipped together, creating a warmer experience for both people and makes this bag particularly good for partners who tend to sleep best at different temperatures. “When I am packing up a car or setting up our tent in a drive-up site, I love having all the amenities,” noted one tester.
Should you buy it? Although we enjoyed the smooth feel of the Taffeta lining fabric at first, we did not like the slipperiness of this material in practice. This isn't an issue when you're zipped inside the main bag, but it did cause the built-in blankets to slip off our bodies occasionally. We should also note that at 8.8 pounds, this bag is much too heavy for backpacking. Nevertheless, it's a great choice for any pair seeking a comfortable two-person sleeping bag for camping near the trailhead.
If you're looking for the best design to snuggle in with your sweetheart, we think you'll love the Kelty Tru.Comfort 20 that allows you to combine body heat for maximizing warmth during your RV or car camping experience. Credit: Jason Wanlass
Why Trust GearLab
This review is the culmination of a decade of hands-on testing by ten separate GearLab expert reviewers. These experts included backpacking guides, mountaineers, backcountry skiers, wilderness rangers, guidebook authors, and thru-hikers. The lead author, Jack Cramer, is a former member of Yosemite Search and Rescue and an accomplished climber who has now personally tested more than 70 different sleeping bags. Jack is assisted by Ian McEleney, an AMGA-certified alpine guide who has lent his expertise in sleeping bags and other backpacking gear to thousands of clients and readers over the years. Jessica Haist is a contributor to our women's sleeping bag review and is also a professional guide with decades of experience. She is joined by longtime outdoor athlete and current Yosemite Search and Rescue team member, Trish Matheny, to uncover the best-of-the-best in women's designs. Jason Wanlass is a world traveler and seasoned backpacker and hiker. Whether it's car camping or canyoneering, Jason will take any excuse he gets to sleep outside. Justin Simoni is an expert in fast and light travel, having taking on many formidable long distance self-powered trips in Colorado and beyond, unencumbered by too-heavy gear. Finally, Arthur McMahon thru-hiked the entire 2,650-mile Pacific Crest Trail and has backpacked many western American mountain ranges, including the Tetons, Sawtooths, Wallowas, Olympics, and more. He wrote a book about his PCT journey and continues to explore the outdoors whenever he gets the chance.
In this review, we highlight our favorite sleeping bags from a range of sleeping bag categories. GearLab has now purchased and tested upwards of 300 bags in conditions ranging from convenient backyard slumber parties to miserable frigid nights on remote Alaskan glaciers. We sent bags on trips to Nepal, Bolivia, Argentina, and Tajikistan, as well as plenty of locales closer to home but no less impressive. All in all, our team of reviewers spent more than a thousand nights testing different sleeping bags so you can be sure the knowledge shared here is thorough, informed, and unbiased.
It's a team effort to examine and test hundreds of sleeping bags, but our team of expert outdoor aficionados is here for it.
How to Pick the Best Sleeping Bag for You
Sleeping bags come in a wide array of shapes and sizes. Different bags can be made of various materials with distinct features, all depending on the specific application for which they're designed. To top it off, the prices of different bags range from dirt cheap to exorbitant. If you're sort through the options, we suggest you ask yourself a simple question: where are you planning to camp?
We hand-selected and tested each sleeping bag to find the absolute best. Credit: Jason Wanlass
Where Do You Plan to Camp?
This is the biggest differentiating factor when selecting a sleeping bag: what location do you plan to camp at, and, more specifically, how far will you be from motorized transportation? If your camping plans will keep you close to your car, we recommend shopping for a more comfortable and plush camping sleeping bag. This type of bag is usually heavier, but prioritizes comfort and cost savings, and if all you have to do is carry it from car to tent, it's 100% worth it. On the flip side, weight and packed size are paramount when undertaking human-powered adventures farther afield. Backpacking sleeping bags are lighter and more compressible, but tend to be more expensive.
If your plans include a mix convenient car camping and overnight backcountry adventures, we suggest choosing a backpacking sleeping bag. You won't have any issues using a backpacking model near your car, but carrying a hefty camping sleeping bag any significant distance can quickly become a real pain, and in most cases, buying one great backpacking bag will cost less than getting one of each.
Testing sleeping bags in many different environments and use cases might seem like fun and games, but it's . . . all right, yes, it's mostly fun. But the bags? Rest assured, we put them to work during our tests! Credit: Elizabeth White
Camping Sleeping Bags
Many of our favorite camping sleeping bags are great for family weekends at a developed campground, but they don't have to be used exclusively for camping. Rather, the name signifies a sleeping bag category designed and built without weight or packed size constraints. This type of bag can serve equally well for RVing, boating, fly-in trips, or even the simple pleasure of camping out in your own backyard or hosting a living room slumber party. Weight and bulk are usually not big concerns for these activities, so camping sleeping bags can optimize comfort, convenience, and price. This bag category is often made in a rectangular shape, offering a roomier sleeping space and lower manufacturing costs. Specialized performance among camping sleeping bags is far less of a concern than it is for backpacking sleeping bags. The primary consideration is finding a bag that matches your warmth, size, and budget requirements.
Car camping bags are often made with synthetic insulation, which is not as warm or lightweight as down, but for most cases, it does a great job. For the avearge camper, we recommend selecting a sleeping bag with a temperature rating of around 30°F, as these models are suitable for various conditions. However, if you like to push your family camp trips late into the fall, or live at higher altitudes, feel free to tailor your selection for your unique situation. Overall, try not to stress too much about purchasing a car camping sleeping bag. Simply find a bag that matches your plans and budget, and it should be up to the job.
When camping with kids, we like to error toward well-insulated sleeping bags to ensure good nights and great memories. Credit: Chris McNamara
Backpacking Sleeping Bags
When your trips take you far into the backcountry, a dedicated backpacking sleeping bag becomes a much smarter choice than a standard camping bag. These bags are built with lighter materials, more efficient insulation, and weight-conscious designs that deliver stronger warmth performance in a smaller, easier-to-carry package. That matters most on human-powered adventures where every ounce counts, including backpacking, bikepacking, sea kayaking, mountaineering, backcountry skiing, and other self-supported trips.
Many backpacking sleeping bags use a hooded, tapered silhouette designed to improve thermal efficiency while trimming unnecessary bulk. This shape — commonly known as a mummy bag — helps keep heat close to the body by reducing extra interior space. The tradeoff is a narrower fit through the legs and feet, which some sleepers may find restrictive. Because backpacking bags often use premium down or synthetic insulation and technical fabrics, they tend to cost more than basic camping bags. But, with a little research, it's entirely possible to find a model that balances performance, comfort, and value. For those concerned about carry weight and size, the investment often makes sense. Not all backpacking sleeping bags can be considered “ultralight”, but some can be, and many are darn close.
The best backpacking sleeping bags use efficient insulation that retains heat well but also packs down small, making them easy to store and carry for miles on the trail. Credit: Arthur McMahon
Ultralight Sleeping Bags
Ultralight sleeping bags are, well, very lightweight. These bags are ideal for those following “ultralight” guidelines to keep their packs as light as possible, typically under 10 pounds. Because they are so lightweight, they are great for multi-day backcountry trips and multi-week thru-hikes like the Appalachian Trail. To cut back on weight, they often use a narrower cut and thinner materials. Some even skip the zippers, cords, and buckles, as every convenience feature also adds extra weight. To keep you warm, these bags are designed to be used in unison with an equally light but performant sleeping pad and weather-appropriate clothing.
Ultralight bags primarily come in two styles: mummy and quilt. Over the past few years, quilts have gained considerable popularity. The reason behind this is the cutdown on materials used and, therefore, the weight. Instead of sleeping on top of the compressed down, the quilt lies over the top with straps that hold it in place on the sleeping pad. They can also be opened up for use in warmer temperatures. Mummy bags, as mentioned above, are contoured around the body and are better at trapping heat. The primary difference between the ultralight and backpacking models lies in the materials used. Some ultralight bags ditch the hood and employ a full-length zipper, allowing them to be used as either a mummy bag or a quilt. Those interested in cutting back on weight can learn more in our best ultralight sleeping bag review.
Because ultralight bags often cut back on materials, they pack up smaller than traditional bags and ultimately save space in the backpack. Credit: Justin Simoni
Key Factors to Consider
Once you know the broad type of sleeping bag you're interested in, several other factors must be taken into consideration. We'll break down factors like insulation type, temperature, weight, packed size, and comfort below to ensure you can be confident in your selection.
We've slept in hundreds of sleeping bags in tents, under the stars, inside SUVs, vans, and more, giving us the experience to recognize outstanding quality and superior designs. Credit: Justin Simoni
Insulation Type
Sleeping bags provide warmth by insulating your body and its heat from outside temperatures. They achieve this warmth by utilizing two primary types of insulation: down feathers or synthetic fibers. Down feathers are the puffy feathers that many birds, such as ducks and geese, have under their sleek outer feather that help them to stay warm. These feathers are excellent at trapping air in the tiny spaces between their filaments, creating an effective temperature barrier. Synthetic fibers are humankind's best attempt at mimicking this insulation strategy. They contain a matrix of fibers, typically petroleum-based, such as polyester or nylon, to fill a sleeping bag and provide insulation.
To protect goose or duck down insulation from getting wet, many of the best down sleeping bags use Durable Water Repellant (DWR) coatings on the shell fabric to keep water from seeping inside. Credit: Clark Tate
Although synthetic fibers are cheaper to produce than down, they have not yet been able to achieve the same warmth for an equal weight of material. Synthetic sleeping bags, however, have one performance advantage: a greater insulating ability when wet. If down feathers get wet, they clump together and lose nearly all their loft and insulating power. Synthetic fibers, in contrast, do not clump, so they can continue to provide considerable insulation when wet.
For camping in vehicles or tents near parking lots, heavier synthetic insulation is often the best choice for warmth, cushioning, and durability. Credit: Jason Wanlass
Despite this advantage of synthetic insulation, most serious backcountry travelers still prefer down-filled bags over synthetic ones for most applications. The weight savings and differences in packed size are that significant. However, synthetic sleeping bags remain popular due to their lower cost. When considering cost per use, we recommend that beginners and occasional backpackers opt for a synthetic sleeping bag, while more dedicated outdoor enthusiasts will find it worthwhile to splurge on a down model. You can find a more thorough discussion of our favorite down models in our best backpacking sleeping bag review.
High quality models like this Sea to Summit Spark 30 usually indicate key specifications on the bag itself, including type of insulation and weight. Credit: Justin Simoni
Temperature Rating
The warmth of a sleeping bag is often advertised in terms of its temperature rating. It's a metric that's supposed to mean the lowest temperature at which a bag should be able to keep you warm enough for sleeping. In practice, however, it's not that simple. Many companies choose their own temperature ratings, which can limit comparison between companies. Most backpacking bags are rated according to an industry-standard EN test. This provides a more consistent measure of warmth, but numerous other factors can affect your actual warmth beyond ambient air temperature. These factors include the type of shelter you're in, the sleeping surface beneath you, the type and quality of your sleeping pad, and even your metabolism.
If you plan to sleep in temperatures near the bottom of your sleeping bag's temperature rating, it's important to sleep on top of a well-insulated sleeping pad where the bag's insulation is compressed by your body weight. Credit: Elizabeth White
We think the most useful temperature rating for a sleeping bag is around 30°F. At this rating, a sleeping bag should be warm enough for most spring and fall conditions while also not being too stifling in the summer months. Your personal preferences and usage may lead you to a different rating. For winter camping, 0°F is a better starting point. Summer campers, however, will probably be happier in a 40°F model. If your sleeping bag doesn't live up to its temperature rating, the issue is most likely your sleeping pad. Check out our sleeping pad review for more info about why your overnight warmth can be dependent on how well you're insulated from the ground.
When held up to light, the down insulation in this sleeping bag's baffles has clumped up during packing and travel, requiring some shaking to redistribute the down before sleeping. Many synthetic insulations are heavier but resist clumping compared to down. Credit: Chris Maxcer
Weight and Packed Size
If you throw your camping gear into the back of your car to reach the campsite, you can skip this section. If you prefer to reach your destination by foot, read closely. A sleeping bag's weight and packed size should be major considerations for any human-powered overnight trip. An extra pound or two might not seem like a lot, but that weight can become significant on an extended backcountry sojourn. A larger packed size can also be an issue because it increases the size of your backpack, which can cause the weight you're carrying to be farther from your center of gravity. Keep these realities in mind when searching for the right sleeping bag.
Sleeping bags filled with ultralight goose or duck down insulation usually weigh significantly less than counterparts that use synthetic insulation. Credit: Trish Matheny
It's important to recognize that warmer bags are generally bulkier and heavier than colder bags. Therefore, try to analyze only the weight and packed size of bags with similar warmth. Don't be afraid to spend a little more for a lighter or more compressible sleeping bag if you plan to venture deep into the backcountry. After all, your knees and back are more valuable than even the priciest sleeping bag.
For a budget-friendly bag, the Exped Terra does pack down well. It may not be the smallest package, but its high-quality compression sack squeezes it down tightly. Credit: Arthur McMahon
Comfort
A bag's comfort is largely dependent on its dimensions and the type of materials used. More expensive insulation, such as goose down, is often perceived as more comfortable because it's lighter and weighs less on the body. Among budget models, the type of lining material can also impact comfort. Our testers generally found flannel feels cozier than the other linings commonly used in budget car camping sleeping bags.
The underside of this quilt-style sleeping bag shows its closed section for keeping your feet toasty while sleeping under the extra-roomy blanket-like top portion. Credit: Justin Simoni
Transitioning from an ordinary blanket to an enclosed sleeping bag can be a claustrophobic experience for some folks. We recommend a sleeping bag with roomier dimensions if this sounds like you. Be especially careful about the length of a hooded mummy bag — stuffing your head inside the hood of a too-short bag can be a literal pain in the neck. Most manufacturers categorize the length of men's sleeping bags as follows: short equates to 5'6" in length, regular is 6'0", and long is 6'6".
We like to test sleeping bags at high elevations because it lets us see how well different models handle wide temperature fluctuations. Credit: Trish Matheny
Women's Sleeping Bags
The length of a sleeping bag is undoubtedly important, but the horizontal measurements should also be taken into account. Women's sleeping bags incorporate design features that cater to women's unique anatomy. Women's bags are often designed with wider hips and narrower shoulders. Women typically sleep colder than men, so sleeping bags marketed toward women usually have more conservative temperature ratings. This can also translate into a bargain when women's bags incorporate extra insulation but are sold at the same price, or in “short” unisex models where the volume of insulation is unchanged from the larger iterations of the same model. See our Sleeping Bags for Women review to read more about our top sleeping bags in this category.
We love dozing in cozy comfort after a night under the stars. Credit: Trish Matheny
Other Notable Sleeping Bags
The above sleeping bags are the creme-de-la-creme, cream of the crop models that we have tested. You can't go wrong with any of them. However, there are some other models that we liked almost as much, and are definitely worth taking a look at.
Feathered Friends Egret UL 20: The Egret is an incredible lightweight sleeping bag construction that includes 950+ FP goose down that's super packable perfect for a luxurious night's sleep deep in the backcountry. Our testers packed this thing all around Cochamó Valley in Southern Chile during a 6 week climbing expedition where the Egret kept them warm despite high winds, precipitation, and fluctuating temperatures.
The Feathered Friends Egret is an excellent lightweight down option that was perfect for our latest expedition, maintaining a surprising amount of loft despite wet and humid conditions. Credit: Trish Matheny
Mountain Hardwear Phantom 15: It's tough to beat the quality and durability of Mountain Hardwear equipment and the Phantom 15 is no different. The Phantom is one of our favorite bags for colder nights thanks to a great fit that maximizes warmth through the 800 FP down construction. The bag is also easy to compress and pack, making it a great choice for those planning extended trips into the backcountry.
The Mountain Hardwear Phantom is our favorite design when it comes to a lightweight down construction that will keep you cozy and warm during long nights. Credit: Trish Matheny
Kelty Galactic 30: For car campers wanting straightforward rectangular sleeping bags that won't take up too much cargo space, this down-filled option weighs under 3 pounds and compresses easily. The 550 fill power duck down isn't as lofty as higher quality down, but it handily outperforms most synthetics — unless it gets wet. The only other drawback is that it's sized for campers under 6' tall, so it's not great for big and tall sleepers. Still, if you want to try out a down bag without spending a small fortune, it's a great value option.
REI Co-op HunkerDown 20: Where most down-filled sleeping bags have body-hugging, mummy-shaped tapers, this alternative is rectangular and it includes a hood-like pocket similar to those found in typical tapered options. We love it because we get the lightweight benefits of down insulation in a package that gives us extra room to roll over and move our legs at night. If you want a lightweight rectangular bag, with the option to snug into a hood on cold nights, this is another of our favorites.
The REI Co-op HunkerDown 20 packs into a remarkably small stuff sack compared to most full-size rectangular camping-focused sleeping bags. Credit: Jason Wanlass
REI Co-op Siesta Hooded 20: The standout feature of this synthetic camping-focused sleeping bag is its extra large, squarish hood. It gave us the warming benefits of a hood without feeling too contained or constricted while sleeping. Better yet, if you tend to loose your pillow while sleeping in tents, the hood kept our pillows in place all night long. It's now available in three different sizes.
Big Agnes Torchlight EXP 20: Are you looking for a unique sleeping bag design with a ton of high quality features? The Torchlight design is a premium down construction that includes an attachment for your sleeping pad, a pillow sleeve, along with expandable panels to create a larger or smaller fit. Our testers who move a lot in their sleep love these features that keep their pillow beneath their head and their sleeping pad in position.
Feathered Friends Hummingbird UL 30: One of the highest rated backpacking bags we've ever tested, this down-filled bag provided the thickest loft we've experienced. Feathered Friends does not skimp on insulation when it fills its baffles, so cold spots aren't ever a thing with this premium winner.
Therm-a-Rest Hyperion 20: For fast and light summertime treks, this ultralight bag weighed just 1.19 pounds, making it one of the lightest bags we've ever tested. Sized best for women, the drawback is that it's quite snug and sacrifices some three-season comfort in favor of low weight you'll barely notice in your pack.
NEMO Tempo 20 Synthetic - Women's: This bag uses synthetic Zerofiber 650 fill insulation, making it a great option for damp environments because the insulation will retain some loft and warmth if it gets wet. It doesn't pack down as small as down-filled alternatives and it's heavier, but the overall quality and value is excellent. The latest iteration is part of Nemo's Endless Promise collection that includes 100% post consumer recycled materials within a design that can be fully recycled at the end of its life. If sustainability and car camping are your thing, this bag is worthy of the hype.
The Nemo Tempo 20 is just like sleeping under a weighted blanket thanks to its heavyweight synthetic design that features a cozy jersey knit pillow sleeve that keeps your pillow in place while you shift positions during the night. Credit: Trish Matheny
Neve Gear Waratah 28 (quilt): If you prioritize the ability to shift and move at night, particularly if you want to extend an arm or leg outside of a sleeping bag to cool off or stretch, then an ultralight down quilt might be the best “bag” for you. This quilt is filled with 850 fill power, RDS-certified duck down for lofty, warm insulation and a zippered foot box to help keep your feet warm on cold nights. The value is outstanding, just know that it doesn't have a full-length zipper like typical sleeping bags. Think of it as a blanket with a big pocket for your feet.
The Neve Gear Waratah 28 quilt has a foot box you can unzip to create a plush blanket. Credit: Justin Simoni
Enlightened Equipment Revelation APEX 30: Most quilt-style sleeping bags are made with down insulation, but this option uses synthetics instead. Weighing in at just 1.54 pounds, yes, it's technically a bit heavier than competing down-based quilts, but we were impressed with its warmth-to-weight ratio and reasonable price. Plus, if we were heading out into chronically wet conditions, this synthetic option would likely be a smarter choice than most non-water resistant down competitors in its price range.
Nemo Sonic -20: If you're planning to camp in truly frigid winter temperatures, this thickly-insulated sleeping bag is rated down to a truly frigid -20° Fahrenheit. It's one of the warmest bags we've slept in, and our testers trust it down to -10° Fahrenheit, which is surprisingly close to the manufacturer's rating. Innovative zippered vents let you dump heat so you can use this bag in warmer temps, too.
Marmot Never Summer 0: While we don't believe this winter bag will keep most people comfortable down to 0° Fahrenheit, it was quite warm well below freezing and livable down into single digits. For the reasonable price, we think it's a great option for cold sleepers looking to extend their camping seasons when the snow might fly.
Mountain Hardwear Bishop Pass 15: For all but the most hardcore backpackers, the Mountain Hardwear Bishop Pass 15 delivers an ideal blend of down insulating power and weight for the price. It combines 650-fill power down in a simple mummy design, providing a solid balance of overall performance. For an affordable option, the Bishop Pass's warmth-to-weight ratio is impressive, and it packs smaller than other models offering similar warmth. Its comfort and versatility may not be otherworldly, but they are high enough to satisfy most backcountry campers.
Sea to Summit Spark Down 15: This bag is perfect for backpackers who care about the feel of fabrics and want thick and springy 850+ fill power goose down insulation to keep them warm and comfortable on the trail. Sleeping in the backcountry in this feels luxurious compared to bags made with rougher, noisier fabrics and lower-quality down.
The Sea to Summit Spark Down 15 is our favorite sleeping bag when it comes to ultralight luxury thanks to the 850+ fill power goose down insulation that combines with a softer (& quieter) lining that your backcountry partners will appreciate. Credit: Elizabeth White
Conclusion
Selecting the right sleeping bag doesn't have to be an ordeal. First, decide whether you need a backpacking or car camping model based on whether your overnights will occur far from motorized transportation. Then, determine your budget and warmth requirements. Finally, you can peruse the appropriate models that meet all your criteria. Our detailed sleeping bag reviews are broken down according to these criteria and include a wealth of information to aid your search, based on our hands-on testing.
