US Patent 10315772 Seat unit

Described are seat units having at least one seat (12) with an upper seat back cushion (32), a lower seat back cushion (34), and a seat pan cushion (36). The at least one seat is configured to transition between a seat position and a bed position. The upper seat back cushion and the lower seat back cushion are separated by a gap (56) located between an end of each cushion when the at least one seat is in the seat position. In contrast, the ends of the cushions are flush with each other when the at least one seat is in the bed position. The seat pan cushion is positioned below a passenger's buttocks when the at least one seat transitions between the seat position and the bed position without additional adjustment by the passenger.