Biss is a versatile single bed available in two versions: base with storage (opening on the right or on the left) and base with one side which can be opened and used to contain the second bed (without headboard). This second bed has wheels and can be either raised thanks to a gas piston mechanism or remain at floor level (version without mechanism). The mattress support has slats with rigidity adjustment. All the covers in fabric or leather are removable thanks to velcro fastening. Backrests are also available: high, low or shaped (right or left).