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. The pillow top feature offers generous layers of plush and durable high performance foams to help relieve pressure points. Visco Memory Foam conforms to your body giving exceptional pressure relieving support and maximum comfort.