The Beautyrest Black Hybrid, feature the T3 Pocketed Coil® Technology; each coil consists of 3, not 1 wire, braided into a single wire coil then individually wrapped. This construction gives you the longest lasting, most supportive coil on the market, giving you individualized back support and pressure point relief throughout the night. You also get the advantage of a specialty foam mattress with layers of BlackICE Graphite infused Memory Foam and BlackICE Latex, along with "AirCool Gel Memory Foam for an ultra comfortable and supportive feel. These specialty foams also provide the most advanced temperature management system, so you feel cooler and sleep better. Spoil yourself and see what a true luxury mattress feels like.