A bench includes a main frame (10), a sitting surface (11) and a backrest (12) which are each supported by the main frame. A sitting surface section (13) and a backrest section (14) are formed separately from the subregions (15, 16) of the sitting surface (11) and backrest (12). The sitting surface section (13) is pivotably connected to the backrest section (14) and can be lifted off from the main frame (10) and, by pivoting the backrest section (14) can be lifted out together with the backrest section (14) in a horizontal section (14) in a horizontal position at a distance from the sitting surface (11) of the seating furniture, forming an elongate arrangement of the backrest section (14) and sitting surface section (13).