Our Verdict
Our Analysis and Test Results
Our Experience
We love Exped and NEMO products, but paying $400 can be a lot to ask. So when we saw the Lost Horizon at roughly half the price, we had to try it. Our first impression was delight — it came with both an electric pump and a stuff sack, items often missing from more expensive pads. After camping with it for several weeks, we were impressed. While it doesn't match the premium warmth or packability of the NEMO Roamer or Exped MegaMat, it's an incredibly comfortable, durable, and burly pad that most budget-conscious campers will love. (78 words)
Comfort
Offers comfortable 4-inch padding that effectively isolates you from rocks, roots, or other ground objects unless they are quite large. Firmness is easily adjustable — the firmer you make it, the less likely you are to disturb your sleeping partner. Overall, it is quiet (much quieter than something like a NeoAir), though still louder than a cotton-sheeted mattress. Self-inflation on a new pad is fairly lackluster and usually improves with time; currently, it does not inflate enough on its own to be truly comfortable. Note that while Nemo claims a maximum thickness of 4.5 inches, it measured closer to 3.9 inches when inflated firmly.
Ease of Use
It is very user-friendly, especially for beginners. The included pump is super helpful for those new to camping or rolling up pads (though it is quite loud). Rotating valves make inflation and deflation straightforward, and the knobs are easy to tighten and loosen. The storage sack doubles as a large inflation bag, so you can still inflate the pad quickly even if you forget the pump. Deflating and achieving a tidy roll takes some practice for novices, but the generous bag easily accommodates a messy one. Overall, it strikes a good balance for real-world use.
Warmth
The Lost Horizon claims an astounding R-value of 13 on Amazon (the highest in this review). We are dubious. We think it is more likely to have an R Value of 6-8. Good for three-season use, but definitely not the warmest pad we have ever slept on. In real-world testing at around 40°F on wet grass with a 40°F sleeping bag and no tent, it performed solidly but still allowed some cold to seep through where the bag touched the pad, especially when rolling over. It felt roughly comparable to the NEMO Roamer Double, with perhaps a slight half-point edge in warmth. Overall, it is on the better end for cold-weather performance.
Versatility
Should You Buy the Lost Horizon Full Camping Pad?
If you're looking for a comfortable, versatile double camping mattress for car camping, guest use, or casual indoor setups, the Lost Horizon is a solid choice. It offers good 4-inch cushioning, easy firmness adjustment, and strong versatility as a nap spot, beach lounger, or play mat. It's user-friendly with helpful valves and a pump, though self-inflation is weak at first. Overall, it is a great deal, especially since it comes with an electric pump.
What other Camping Mattresses Should You Consider?
The Lost Horizon offers strong value compared to the NEMO Roamer Double, coming in at roughly half the price while including an electric pump and stuff sack—features often missing from more expensive pads. It delivers solid comfort with 4-inch padding and easy firmness adjustment. However, it falls short in packability, rolling up noticeably larger than the Roamer. Warmth is roughly comparable, with the Lost Horizon showing a slight edge in testing, though its claimed R-value of 13 is questionable. Overall, the Lost Horizon is a capable budget alternative but doesn't match the Roamer's refined performance or compact size.
Compared to the Exped MegaMat Duo, the Lost Horizon is significantly more affordable and includes useful accessories. While it provides good comfort and durability for car camping, it doesn't match the MegaMat's superior plushness, warmth, or refined feel. The Lost Horizon is also bulkier when packed and less refined overall. It performs well for the price and offers strong versatility as a guest bed or lounger. Still, serious campers seeking premium comfort and insulation will likely prefer the more expensive Exped MegaMat Duo.| Awards | Best Value Double Mat |
|---|---|
| Price | $220 List Check Price at Amazon |
Overall Score ![]() |
|
| Star Rating | |
| Bottom Line | This pad offers great comfort and warmth at half the price of many competitors |
| Pros | Bag doubles as an inflation pump if needed, strap keeps the pad from unfurling, included battery pump, easy to deflate small amounts of air, carry strap on the bag and around the pad, and a forgiving sack for messy rolls |
| Cons | On the heavy side, doesn’t pack as small as other double pads, valves aren’t flush with the mat |
| Rating Categories | Lost Horizon Air & F... |
| Comfort (40%) | |
| Ease of Use (20%) | |
| Warmth (20%) | |
| Versatility (10%) | |
| Packed Size (10%) | |
| Specifications | Lost Horizon Air & F... |
| Thickness | 3.9 in |
| Length | 80.5 in |
| Width | 52.5 in |
| Weight | 15.9 lb |
| R-Value | 8 |
| Packed Size | 27 in x 14 in |
| Type | Self, pump, or inflation sack |
| Test Model | Full |
| Bed Material | Not specified |
| Valves | Two valves |
| Accessories | Stuff sack, pump, carry/cinch strap |









