The biggest, warmest, most comfortable inflatable pad at around two pounds. Itâ??s incredible what is able to pack into this luxury pad without going overboard on weight. Klymalite lofted synthetic insulation keeps you comfortably warm throughout the night on a V-Chambered sleeping surface thatâ??s wide enough so you can move around without feeling restricted. It even rolls up small enough to easily slide in a backpack.