Our memory foam sleeper sofa bed mattress is made with a generous 4.5 inches of Plush memory foam and Plushfoam-HD, made of billions of open-ended cells, resulting in a formula almost three times as dense as regular foam. Our sleeper sofa memory foam closely knit structure makes more body contact, relieving pressure points and providing unsurpassed comfort and support, while at the same time absorbing the shock of body movement, allowing you to move freely without the uncomfortable reminder that your sleeping on a sofa mattress. Protected in a machine washable, deluxe brushed terry cover, our Slice of Heaven memory foam sofa mattress provides ultimate support and comfort for a better night's sleep.