Sleep comfortably and cool all night long thanks to the innovative construction of this firm Beautyrest Harmony Lux Hybrid Trilliant mattress. InfiniCool Max technology combines three stay-cool layers on and right below the surface, and Micro Diamond memory foam infused with diamonds also helps manage temperatures by conducting heat away from your body. High-density EverGel memory foam contours to relieve pressure, while supportive Dynamic Response memory foam is ventilated to promote breathability. The unique ContourFit design stretches, adapts and recovers throughout the night as you find the perfect sleeping position. Dual-strand coils in this firm mattress absorb energy and reduce motion. As a luxurious finishing touch, the mattress is covered by a fabric that contains SEAQUAL ® YARN a high quality 100% post-consumer recycled polyester yarn made with SEAQUAL ® MARINE PLASTIC from SEAQUAL INITIATIVE.