Sofa bed Sofa bed Sofa bed Combined sofa-bed and chair SIMPLIFIED MECHANISM SOFA BED A convertible sofa-bed structure Sofa bed construction Sofa bed with TV headrest FOLDING SOFA-BED CONSTRUCTION WITH ADJUSTABLE HEAD SECTION Sofa Bed Mechanism Simulation and optimisation UPHOLSTERED FRAME MEANS FOR SOFA BEDS Collapsible sofa bed mattress Sofa bed spring improvements
