Abstract: A piece of furniture (1) that can be brought in a sofa/chair configuration and a bed configuration, wherein the piece of furniture is provided with a frame (2) comprising a first frame part (3) provided with a first extremity (3a), and a second extremity (3b) located opposite the first extremity (3a), a second frame part (4) being hingedly connected to the first frame part (3) at the location of the first extremity (3a) or being slideably connected to the first frame part (3), a third frame part (5) being hingedly connected to the first frame part (3) at the location of the second extremity (3b), a fourth frame part (6) being hingedly connected to the third frame part (5), wherein the central axes (4) around which the said frame parts (3, 4, 5, 6) hinge relative to each other extend parallel to each other, while, in the sofa/chair configuration, the second frame part (4) lies on the first frame part (3), the third frame part (5) forming a backrest (7) and the fourth frame part (6) taking up a locking position