The Liberty Futon Mattress works with any futon frame and is one of the premium firm 8" futon mattresses with a special characteristic of two different types of foam resulting in a supportive feel. The 9" blend of high performance foam used in the Li berty futon mattress is dynamically pressurized to fit into 8" of space resulting in a luxurious feel. The Liberty futon mattress has a 9" blend of high performance foam (containing two layers of minimum 2.0 pound density foam and four layers of mini mum 2.5 pound density foam) that benefits you with a mattress that looks and feels great. Machine tufting a double layer of polyester tape edge closing and 7.5 oz twill fabric gives this futon mattress its final look and feel. Made in U.S.A. Chair Ma ttress - 54L x 28W x 8H inchesOttoman Mattress - 28L x 21W x 8H inchesTwin Mattress - 75L x 39W x 8H inchesTwin Loveseat Mattress - 2 pieces - 54L x 39W x 8H inches & 34L x 21W x 8H inchesFull/Double Mattress - 75L x 54W x 8H inchesFull Loveseat Matt ress - 2 pieces - 54L x 54W x 8H inches & 54L x 21W x 8H inchesQueen Mattress - 80L x 60W x 8H inchesKing Mattress - 80L x 76W inchesCal King Mattress - 80L x 78W inche