The 9" ComfortCoil #708 Twin Natural futon mattress features a medium firm surface feel with a custom-designed supercenter innerspring unit, layers of high resiliency foam and cotton.With a construction consisting of 9 inches of cotton, foam, and innerspring materials, this twin size futon mattress provides exceptional comfort and support like the best conventional mattress. The mattress features an American made 312 coil innerspring unit with a 13.5 gauge bonnel spring unit and includes two pieces of 1/2" foam and 30 lbs of Gold Bond Joy cotton batting.The futon mattress is designed with natural colored fabric and a Gold Bond's own blend of cotton batting, providing a restful night's sleep. The mattress easily folds into any futon frame and is available in various sizes and colors.