Simmons BeautyRest Classic PT Baran Twin Mattress Only 800-Pocketed coil springs providing the Beautyrest difference that has become a hallmark of this great brand since 1925 and the gold standard to undisturbed rest and eliminate motion transfer Two rows of heavy gauge pocketed coil springs along the sides of the mattress for a firm seating edge durability, and maximized sleeping surface; These models also feature edge clips for head and foot edge support Knit fabrics provide a great level of comfort and feel Plush yet durable premium foams are designed to enhance comfort, conformability and support No flip or rotate the mattress