Twin size portable bed unfolds to a 75 x 39 x 15.5 in sleeping surface, giving guests a stable place to rest and folding quickly to 38 x 20 x 41 in for compact storage. The 5-in foam mattress combines memory foam and sponge with a breathable polyester fabric cover and non-slip base to help reduce shifting while you sleep. A heavy-duty metal frame with a reinforced triangular structure and U-shaped legs supports up to 480 lbs. Lockable universal wheels, side pocket, storage cover, mattress retainer and fixing straps help with use and storage between visits.