Wikipedia
Murphy bed
A Murphy bed (in North America), also called a wall bed, pull down bed or fold-down bed is a bed that is hinged at one end to store vertically against the wall, or inside of a closet or cabinet.
Usage examples of "murphy bed".
She asked him to measure the Murphy bed frame in the small room off the kitchen downstairs.
Ma Fanny was sitting in the stuffed chair in the livingroom, working on a red sweater, and Mom was stretched out on the Murphy bed, holding a magazine upside down.