If you need for a sofa bed with true bed comfort is a must and space is not a concern, this is the ideal sofa bed. Featuring our "sits like a sofa and sleeps like a bed" design, this sofa is engineered with the objective of providing a comfortable sofa and a supportive bed. As a sofa, the heavily padded backrest and the waterfall seat cushion are the ultimate in comfort. As a bed, the independent left and right birch slat mattress base eliminates that sagging sleep feeling. Complemented with a high-resiliency US Queen-size foam mattress (60" x 78"), this sofa bed can not be considered only a sofa but also a true bed. For the ultimate in hygiene, the mattress cover is removable and machine washable. Converting from a sofa to a bed is a matter of tugging on the pull-strap, out tumbles the bed, midway through the conversion, the backrest incorporates a storage area for pillows and a blanket. Converting back from a bed to a sofa is a matter of slightly lifting the bed frame which folds the bed into the sofa. Unlike traditional sofa beds, there is no need to remove and store the seat or back cushions. The extra-wide arms (10 inches wide) double as an additional surface to sit on or to put down a book, a tablet, or a beverage. This is the ultimate sofa and bed, in comfort and convenience.