Insulated Air Mattress
Therm-a-Rest NeoAir XTherm
$230, 15 oz. (regular)
Sizes: regular (20x72x2.5 ins., tapered), large (25x77x2.5 ins., tapered), Max (25×77.2.5 ins., rectangular)
When sleeping outdoors at any time of year, you have two simple objectives: comfort and warmth. We tend to associate the former with our choice of air mattress or pad and the latter with our choice of sleeping bag. But the air mat is actually the key to both goals, because dollar for dollar, your money achieves more warmth from an air mat or pad that adequately insulates your body from the cold ground (which can rapidly drain heat from you) than from your bag. In the NeoAir XTherm—which I tested on numerous trips, including several nights sleeping on snow—you get an all-season air mat with more insulation, pound for pound, than any competitor.