Abstract: A backpack frame convertible to a mattress supporting cot with a tent supporting structure includes first and second generally U-shaped tubular frame sections hinged to each other and foldable between a compact position defining a backpack frame configuration and an extended position defining a normally substantially horizontally disposed cot configuration having opposing hollow side members. Each hollow side member has an open end, and the respective open ends are positioned diagonally opposite each other. When disposed in a cot configuration, the cot is supported by a plurality of support members mounted on each side member. A tent support assembly is storable in each hollow side member and extendible from the respective side member open ends to define an obliquely disposed strut and substantially horizontally disposed ridge member superposing the cot. The ridge members are releasably connectible to each other at one end and pivoted at the other end to the respective struts.