Beautyrest World Class - Level Four Firm Pillow Top MattressStep up to a world class sleep experience with Beautyrest World Class. Our 1000 density Pocketed Coil Technology and higher density foams provide premier individualized support + motion separation. Our brand new World Class Relief HD Foam, featured in all Level Four Mattresses, offers remarkable pressure relief that responds to your body. Plus, Level Four mattresses feature twice the SurfaceTouch Gel Memory Foam to unlock pressure relief right at the