Get the highest warmth-to-weight ratio of any air mattress on your next winter camping trip with the Therm-A-Rest NeoAir XTherm Sleeping Pad. This lightweight pad insulates and cushions you from the hard, frigid ground below without tacking on the weight or bulk normally found in winter-worthy sleeping pads. Tough nylon can handle sharp jabs from rocky campsites, while the soft, no-slip top fabric boosts comfort and keeps you from slipping off your pad when you're sleeping on uneven ground. ThermaCapture layers within the pad insulate and reflect heat back to your body to keep the cold ground from sucking away all your precious heat. The mummy shape saves valuable space in your pack and shaves down weight.