It all started with the introduction of the world's Premier Sleep System: Beautyrest® Pocketed Coil® springs which move individually to support the natural shape of your body, and diffuse movement for a peaceful, undisturbed rest. Since then, Beautyrest has led the way in introducing a wide range of advancements that help you sleep your best — so you can Be More Awake™. The Poised Slumber 11.5" Firm Tight Top Mattress offers a supportive and cooling firm feeling.