The 4.5 in. profile Gel Foam Sofa Mattress has Gel Memory Foam and is designed ensure your guests sleep as comfortable as possible after a night on your sleeper sofa. Starting with the top layer of 2 in. breathable and comfortable gel memory foam that works with the support layer providing you with the ultimate sleeping experience. The 2.5 in. support base layer maintains the strength and effectiveness of the layers. The two layers work together to bring you the relaxation you crave and the ultimate sleeping experience. Gel naturally draws heat away from the body, so you don't have to worry about getting too hot throughout the night. The luxurious matelasse knit cover is soft and silky to the touch. The gel sofa mattress can also be used as a bunk bed mattress, an RV mattress, or a mattress topper. Even place it on the floor if you have guests staying over for added sleeping space.