Memory Foam Sleeper Sofa 4.5-inch Mattress - 72L x 54W Mattress Dimensions: 72"L x 54"W x 4.5"H 1.5-Inches Memory Foam Contouring Layer and 3-inch CertiPUR-US Polyurethane Foam Supportive Base Layer Removable and Washable Cashmere Blend Cover For Use with Sleeper Sofas Only Sofa Not Included