A seating unit that includes a foldable bed includes: a base with an internal cavity; a foldable bed that includes separate and distinct head, intermediate and seat sections; and a bed folding mechanism. In a folded position, the intermediate and seat sections are generally horizontally disposed and positioned in vertically stacked relationship, and the head section is generally vertically disposed and positioned adjacent a rear portion of the base, with an outer surface of a cushion of the head section forming the rear surface of the seating unit, and in an unfolded position, the head, intermediate and seat sections are generally horizontally disposed and in serial alignment with each other. The bed folding mechanism is attached to the base and the head, intermediate and seat sections and controls the movement of the bed between the folded and unfolded positions.

A self-locking mechanism and a folding sofa are provided. The self-locking mechanism includes a support member, a locking member, a drive member and a switch member. The support member has a first end and a second end opposite to each other. The locking member has a first connection portion and a locking portion, and the first connection portion of the locking member is pivotally connected to the first end of the support member. One end of the drive member is pivotally connected to the first connection portion of the locking member. The switch member has a second connection portion and a switch portion, where the second connection portion of the switch member is pivotally connected to the second end of the support member and the other end of the drive member.

A sofa bed can solve the problem of where to place a sofa in a smaller space or inside a recreational vehicle. The sofa can be completely flattened out to become a sofa bed. When not needed or when space is limited, the sofa bed can be folded directly against the wall. The sofa bed can include a back support cushion, a seat cushion and a leg rest. The back support and seat cushions can be supported by a frame underneath. A system of spring-loaded rods can be under the leg rest. These parts can be completely flattened or turned into a sofa, with the leg rests covering the frame underneath the sofa. The sofa can be folded to the wall, controlled by hydraulic rods at the bottom. The legs of the sofa bed and the hydraulic rods can be designed to not protrude from the wall when folded.

A folding bed, such as a sofa bed, with an assembly configured to counteract the gravitational forces acting on both a rotation of the main panel in relation to the frame and a rotation of the foot panel in relation to the main panel. A transmission may be used in the assembly to connect the first pivotal connection, where the main panel pivots with respect to the frame, to the second pivotal connection, where the foot panel pivots with respect to the main panel. The transmission transmits torque from the first pivotal connection to the second pivotal connection, so as to counteract gravitational forces acting on the foot edge of the foot panel.

A seat assembly includes independently rotatable and reclinable seats. The seats have back support sections that can be rotated between a sofa position and a compact position as well as the sofa position and a reclined position. The seats can further include leg rests that are movable between a lowered position and a raised position.

Disclosed is a folding sofa bed, including a folding bed frame body, a cushion body, and a turning component. The cushion body is disposed above the folding bed frame body. The turning component is connected with the folding bed frame body and the cushion body. The turning component is capable of driving the cushion body above the folding bed frame body to turn to be below the folding bed frame body. In this application, when the folding sofa bed is unfolded, the cushion body may turn to be below the folding bed frame body through the turning component. This may not only save space, but also bring convenience to a user for operation.

A zero-wall trifold sofa bed includes a sofa base, where the sofa base is provided with two symmetrical folding assemblies; the folding assemblies each include a first long arm and a second long arm that are pivoted to a front side of an inner wall of an armrest box of the sofa base; the first long arm and the second long arm are jointly pivoted to a first assembly element for assembling a first sofa base; a middle part of the first long arm is provided with a first short arm; a middle part of the second long arm is provided with a second short arm and a third short arm; the first short arm and the second short arm are jointly pivoted to a second assembly element for assembling a second sofa base; the third short arm is pivoted to one end of a connecting rod.

A sofa with an adjustably coupled headrest and backrest includes a base movably connected with a side panel and a coupling sheet for backrest hinged at the side panel, and a backrest assembly including a connection element of backrest with a front end hinged at a rear end of the side panel at an upper position and a connection rod of backrest with an upper end hinged at a rear end of the connection element of backrest, and with a lower end hinged at the coupling sheet for backrest, the base is provided with a drive member to switch a backrest frame to a lying position, and a coupling assembly for headrest configured to force the connection element for headrest to flip relative to a backrest skeleton is provided between the connection rod of backrest and the connection element for headrest.