rollaway
roll a way |ˈrōləˌwā ˈroʊləweɪ | ▶noun a bed fitted with wheels or casters, allowing it to be moved easily: [ as modifier ] : a rollaway bed.
roll |away |ˈrəʊləweɪ | ▶noun N. Amer. a bed fitted with wheels or castors, allowing it to be moved easily.