A convertible seating unit (100, 200) is disclosed as including a first seat (104a, 204a) including a first backrest (106a) and a first seat base (108a), and a second seat (104b, 204b) on a side of the first seat, in which at least the first seat is movable between a first configuration in which the first backrest is inclined relative to the first seat base and a second configuration in which the first backrest is substantially parallel to the first seat base, and when the first seat is in the second configuration, the first backrest forms a first upper support surface.