A seating system and a passenger seat unit for an aircraft

A passenger seat assembly for a vehicle, particularly an aircraft, which is adapted to provide self-contained, individual seating and sleeping accommodation for a passenger, said seat assembly comprising: supporting structure (42) for supporting said assembly off the floor of a vehicle; one or more movable passenger-bearing, structural components (71, 72); and means for connecting said movable, structural components to said structure such that said components can be selectively moved between a seat configuration, in which a plurality of passenger-bearing surfaces on said one or more structural, movable components (71, 71) or said supporting structure form a seat for the passenger, and a bed configuration, in which a plurality of said bearing surfaces (47,48, 67, 74, 76) are disposed substantially coplanarly and substantially contiguously to form a bed for the passenger.