Sofa bed - online puzzles

A sofa bed or sofa- bed, (in the US often sofabed, hide-a- bed, bed - couch or sleeper-sofa), is typically a sofa or couch which underneath its seating cushions hides a metal frame and thin mattress that can be unfolded or opened up to make a bed. A futon differs from a sofabed, although sofa beds using futon mattresses are common.