Affordable luxury, advanced engineering, zoned Quantum support, exceptional support. The Edge 6000 Firm mattress by the Edge collection of Sleeptronic features DeepFreeze Plus that draws excess heat away from the body, Gel-infused Poly quilt layers to promote air exchange, Copper Infused Memory Foam, a layer of Extra Firm quilting and support layers to provide the firm comfort, and 3-zoned of Comfort with the Quantum Coils concentrated on the edge and in the center third of the mattress. This mattress will bring all the support and comfort you need to get a good night’S sleep.