The Beautyrest Silver BRS900-C Collection, emphasizes Support, Longevity and Coolness. Think of how important it is to have, the comfort you feel when you first get your mattress, last for years later. Supported with the World's Premier Sleep System, the 900 series Pocketed Coils, forming to your body filling every curve, supporting your spine. Layers of high quality comfort foam, including Dynamic Response Memory Foam, help retain the great feel of your mattress. You'll retain the Ideal Sleep Temperature through Beautyrest's DualCool™ Plus Technology.