The chair cum sleeper is easy to operate with tray table on right, left or both sides. It loads 500 lb as a chair and 350 lb as a sleeper. Storage is available on right, left and both sides. The arms are composed of Urethane foam. The casters are front locking. Additional mattress cover is available. All parts are self contained with no removable parts and storage. Seat surface has no connection with sleeping surface. It has 10 years warranty.