Self-Inflating Air Mattress
Sleeping atop a self inflating air mattress on the ground is surprisingly comfortable. Ingeniously constructed of open-celled foam sealed
in an envelope of sturdy nylon cloth with an air valve that, when opened, draws air into the foam. Close the valve trapping the air and the result is a bed of air that insulates and cushions the sleeper. Although they cost more than the alternatives the comfort of a decent night's sleep is worth it.
Thermarest introduced the idea about twenty years ago and continues to offer
good products. Slumberjack mattresses are generally less expensive. I own a big thick, full length Slumberjack for car camping and an ultra-lightweight 3/4 length Thermarest for backpacking. I also have (and highly recommend) a sleeve-like adapter that turns the pad into a chair.














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