& Nbsp; & nbsp; sofa bed currently on the market there are two fold, three fold , can be divided into the seat back folded and flattened by telescopic rails drag drag and drop , bedstead folding and unfolding process easy to operate. Collapse after the sofa bed is very delicate and not clumsy , generally are used as beds occupied area were reduced by nearly one-half , and sat on the sofa with the true comfort is no different . & Nbsp; sofa bed design is also varied. The tape storage sofa bed , sofa side can be used as storage boxes, cushions win to put the pannier , which are combined into a sofa bed ; some arm of the sofa can be put into a ninety-degree flat bed, the mattress chairs straight out ; some flip sofa seat to form a double sofa bed & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;