Guides Choice Award Winner
The XTherm mattress is the warmest mattress in the NeoAir collection, allowing you to go lighter than ever in winter conditions. Patent-pending Reflective Barriers give the XTherm mattress true 4-season warmth without the weight or bulk usually found in a winter-worthy mattress. The result is a mattress that weighs less than a pound, takes up less pack space than your water bottle, and provides serious comfort in extremely cold conditions. Pump sack and repair kit included.
- Extremely Warm: Four layers of reflective material recycle body heat and create air pockets that reduce convective heat loss.
- Comfortable: 2.5-inch thickness and patent-pending Triangular Core Matrix construction provides unrivaled stability and comfort.
- Highly Packable: Low-bulk materials make the XTherm™ mattress compact and as packable as a water bottle.
- Lightweight: Advanced materials and a tapered design reduce weight without compromising warmth.
Specs
| Small | Medium | Regular | Large | |
| R-Value | 5.7 | 5.7 | 5.7 | 5.7 |
| Weight | 11oz, 310g | 14oz, 410g | 15oz, 430g | 1lb 4oz, 570g |
| Width | 20" 51cm | 20" 51cm | 20" 51cm | 25" 63cm |
| Length | 47" 119cm | 66" 168cm | 72" 183cm | 77" 196cm |
| Thickness | 2.5" 6.3cm | 2.5" 6.3cm | 2.5" 6.3cm | 2.5" 6.3cm |