Abstract: A sofa bed wherein the backrest portion is pivoted down to constitute the bed and which is characterized by simple pivot connections positioned at the opposite ends of the backrest-bed unit and allowing readily disconnection of the backrest-bed unit from the base for separate transportation and moving of these sofa components. This sofa-bed includes a base, opposite end and armrest structures, the backrest-bed unit, and a single pivot pin and slot connection between each end of the backrest-bed unit and the corresponding opposite end and backrest structure for readily disconnection of the backrest-bed unit by were sliding of each pivot pin out of the corresponding slot.