Abstract: A combination bed and lounge having a mattress assembly supported on wheels and track and guide structures for movement from a horizontal bed position to a seat position. The inner section of the mattress rides on downwardly and inwardly extended rails. The outer section of the mattress is carried by a movable support having a pair of wheels. The movable support cooperates with a locking member to releasably hold the mattress in the seat position. In one bed and lounge unit, a backrest is pivotally mounted to the inner section of the mattress and is movable to a backrest position when the mattress is in the seat position and an open position when the mattress is in the bed position. In another bed and lounge unit, a backrest is pivotally mounted on the cabinet accommodating the mattress assembly.