Built around a sturdy metal wire deck rated to 485 lb., this cot size folding bed pairs that structure with a 4 in. memory foam mattress over a high-density sponge base, so a guest sleeping on it gets contour under the shoulders and hips rather than the sag a thin pad produces. The mattress cover is a breathable fabric that moves air through the foam instead of trapping heat, and its non-slip underside keeps it seated on the deck as a sleeper turns. U-shaped legs reinforced with crossbars and finished with non-slip foot pads hold the frame square under a shifting load. Four universal wheels move it between a closet and the guest room with brakes on 2 of them to lock it in position, and it folds neatly into a corner when the visit ends. Two mattress retainers stop the foam sliding off either end, and a hook and loop strap keeps the frame from unfolding in storage. It suits a living room, guest room, study, office or apartment equally. Color: White mattress with black metal frame.