Abstract: A headrest removal assembly is disclosed. The assembly may include a plunger including a plunger shaft and lever portion. The assembly may include a compressible spring coupled to the plunger and configured to surround at least a portion of the plunger shaft. The plunger configured to translate the stopper between at least a first position and a second position when a force is applied to the lever portion of the plunger to cause the plunger to compress a portion of the compressible spring within the cavity of the base to cause the stopper to disengage from the cavity within the headrest support plate to cause the headrest removal assembly to disengage from the headrest support plate.

Abstract: An aircraft passenger seat configured to facilitate ergonomic alignment of a passenger while in a sleeping position, including a seat bottom; and a seatback including a central opening corresponding to a shoulder region of a passenger, and a sleep support assembly mounted within the central opening, the sleep support assembly including an adjustable support member spanning a central portion of the seatback, where the adjustable support member is configured for at least one of translation and deformation; where, when the seat bottom is aligned with the seatback in a lie-flat seating position, a load provided by the shoulder region of the passenger, at least in a side-sleeping position, causes translation and/or deformation of the adjustable support member toward a floor of an aircraft cabin, thereby facilitating ergonomic alignment of the spine.

Abstract: An aircraft passenger seat configured to facilitate ergonomic alignment of a passenger while in a sleeping position, including a seat bottom; and a seatback including a central opening corresponding to a shoulder region of a passenger, and a sleep support assembly mounted within the central opening, the sleep support assembly including an adjustable support member spanning a central portion of the seatback, where the adjustable support member is configured for at least one of translation and deformation; where, when the seat bottom is aligned with the seatback in a lie-flat seating position, a load provided by the shoulder region of the passenger, at least in a side-sleeping position, causes translation and/or deformation of the adjustable support member toward a floor of an aircraft cabin, thereby facilitating ergonomic alignment of the spine.