Therm-A-Rest have 40 years of experience in making air mattresses, and the multi-award winning NeoAir is a testament to that. This mattress ticks all the boxes - it's unbelieveably light at only 14oz, yet it's still a respectable 72 inches long and 2.5 inches thick. It's 3 times warmer than any other uninsulated air matress, thanks to a unique aluminised barrier which reflects warmth back to your body and reduces convective heat loss. The Triangular Core Matrix internal truss system means this matress is far more stable than other, large tube-based air mattresses. You'll shift less, and thus have a better night's sleep - we hope! Also, it packs down to the size of a 1 litre bottle. This is a brilliant mat and we can't recommend it highly enough.