The Beautyrest 16.25" World Class Level 4 firm pillow top mattress features an innerspring design that delivers everything you need for great sleep, including premier individualized support and advanced motion separation. The cushion-firm comfort level offers contouring softness and support ideal for back and stomach sleepers. Layers of World Class Relief high density foam, ActiveResponse MAX memory foam, and SurfaceTouch gel memory foam respond to body temperature for deeper pressure relief and provide temperature management. A 1000 Density Pocketed Coil® support system delivers Beautyrest’s premier individualized support while minimizing motion transfer. An anti-microbial quilt cover with InfiniCool® MAX Technology creates a cool-to-the-touch surface, while natural lux fibers enhance breathability. Mattress protector recommended. Made in America.