Sofa Bed Buying Guide: Sleeper Sofas, Futons, and Convertible OptionsThe Indispensable Double-Agent: A Time-Honoured Tribute to the Sofa BedIn the annals of domestic utility, few pieces of furniture command such universal admiration and requirement as the humble, yet endlessly clever, Sofa Bed. It is the perfect double-agent of the drawing-room, a