Mozaic Twin Size 6-inch Cotton Twill Futon Mattress, Blue STANDARD TWIN SIZE  fits any standard Twin futon frame, sold separately. Mattress is 75 inches long, 39 inches wide and 6 inches thick. COTTON TWILL TUFTED COVER  mattress is covered in cotton twill . DURABLE  mattress is reversible and made to be used in a futon folded in upright sofa position or flat in a bed position. MADE IN THE USA  handmade mattress is proudly made in the US following federal flammability standard 16 CFR 1633.