This Greatness Tight Top mattress by Beautyrest Quintessence features the Winter™ Gabric Treatment that helps you sleep comfortably at the right temperature, WinterCool™ Quilt Fiber for a clean and cool sleep, WinterCool™ Carbon Foam that conducts heat away from the body, the WinterCool™ Tri-Fiber™ for a hypoallergenic and luxurious feel, the GelTouch® Foam that helps provide comfort, support, airflow and breathability, and the T3 Pocketed Coil® Technology that offers extra support in the center third where your body needs it most.