Sofa Bed frame Brief describe; 1,Multipurpose:sofa and bed; 2,The function and quality is better than others , 3,good price. Sofa Bed frame detailed ... describe:1,Multipurpose:sitting as sofa;sleeping as bed2,Used for hotel,guestroom ... .7,You may be choose mattress,the mattress is spring sponge or latex and the size can be custom-made Sofa bed frame