A aircraft passenger seating arrangement comprises a seat (1), a secondary surface (4) spaced to one side of the seat (1), in a direction substantially parallel to the width of the seat; and an infill surface (3) deployable into a space between the seat (1) and the secondary surface (4) so as to form a substantially continuous sleeping surface along the secondary surface (4), the infill surface (3) and the width of the seat (1).