This Simmons Beautyrest World Class features a 980 Density Pocketed Coil® unit that gives superior support with unique Pocketed Coil® springs that provide unsurpassed motion separation while conforming to your body's unique shape. The Ultra 360° Foam Encasement features 3 inches of high density foam edge support for sleeping comfort right to the edge. Luxurious and attractive stretch knit fabrics soothe with a soft hand and natural fiber blend. The durable design of the Simmons Triton® Foundation supports up to 2,000 pounds of pressure. The Beautyrest World Class offers a Level 2 MSI. Plush and durable high performance foams help relieve pressure points. Visco Memory Foam conforms to your body giving exceptional pressure relieving support and maximum comfort.