Comfort Light Insulated Air Sleeping MatSleeping well when you're backpacking goes hand in hand with sleeping comfortably. The Comfort Light Insulated Sleeping Mat uses Air Sprung Cell technology and a hybrid matrix of offset cells to provide amazing stability and comfort. A double layer of cells in the torso increases warmth, while a single layer of cells in the head and legs reduces weight. Thermolite and Exkin Platinum are used to optimize heat retention and the multi function valve