The Best Price Mattress 4-inch tri-fold memory foam mattress topper gives you a comfortable, relaxing night’s sleep wherever you go. The innovative tri-fold mattress topper is constructed with 1.5″ Memory foam and 2.5″ High-density foam for added comfort and support. With it’s portable design, The mattress topper folds up for easy storage and can be transported for use in any situation. Camping, rving, for guests and sleepovers, the versatility of the mattress makes it a must-have for any household. Feature layers: 1.5 inch memory foam + 2.5 inch high-density foam cover: 100% poly-Jacquard cover with slip-proof Bottom. Spot clean only. Do not attempt to machine wash. If the fabric/foam becomes soiled, spot clean with mild soap, Rinse with cold water and let air dry. Do not use products that contain bleach. Sizes: (inches) extra small (25 x 75 x 4) small (33 x 75 x 4) twin (39 x 75 x 4) twin XL (39 x 80 x 4) Full (54 x 75 x 4 ) short Queen (60 x 74 x 4) Queen (60 x 80 x 4) King (76 x 80 x 4) California King (72 x 84 x 4) safety and performance: foam is CertiPUR-US certified for highest standards sleep in comfort: enjoy a good night’s sleep wherever you are in any situation. Rest assured knowing your body will comfortably lay in the memory foam that will relieve pressure points on your body.