This no-flip mattress is constructed of high density foam and a 294 easy hinge innerspring unit. The easy hinge spring unit allows the mattress to effortlessly convert from a sofa to a standard full size bed. The easy hinge mattress is also designed to fit perfectly in the sitting position every time. The attreactive tufted cover nicely finishes off this premium futon mattress.Product Dimensions:75'L x 54'W x 8'H