Our Slice of Heaven™ memory foam sofa mattress offers a generous 4.5 inches of USA made premium memory foam and CertiPUR certified Plushfoam™, made of billions of open-ended cells, resulting in a formula almost three times as dense as regular foam. Finally! You and your guests can say "goodbye" to that uncomfortable metal bar that is notoriously associated to sleeping on a sofa bed mattress. Our Slice of Heaven™ memory foam sofa mattress offers a generous 4.5 inches of memory foam and high density Plushfoam™, made of billions of open-ended cells, resulting in a formula almost three times as dense as regular foam, and guarantees that your guests will not feel any metal bars. While our sleeper sofa mattress design comes at a higher manufacturing cost, the 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 deluxe cotton cover, our Slice of Heaven™ memory foam sofa mattress replacement provides ultimate support and comfort for a better night's sleep. Plushbeds Slice of Heaven™ Memory Foam Sofa Bed Mattress comes in the following sizes: Twin (35" x 72") - $249 Twin Wide (38" x 72") - $249 Full (52" x 72") - $299 Full Wide (54" x 72") - $299 Queen (58" x 72") - $349 Queen Wide (60" x 72") - $349 Single (24" x 72") - $229