The patented AirFrame™ construction combines the convenience a self-inflating mat and the comfort of an air mattress. • 5cm of Loft and Comfort: More than any other ultra light, self-inflating, mattress. • Ultra light, AirFrame™ Construction: Alternating foam and air channels results in reduced weight & packed volume while retaining loft for comfort. • Atmos™ Foam: This proprietary foam is poured in an atmospherically controlled chamber giving precision control over uniformity and loft. The result is the lightest and most compressible foam on the market.