An exclusive layer of feel-enhancing material complements the 1,300 double-stacked innerspring coils for high responsiveness and exceptional support, perfect for sleepers of all shapes and sizes. A. Pure Cool Plus Material - 5cm An enhanced version of our exclusive and innovative cooling material, designed to pull heat away from your body B. Ventilated Advanced Relief Material - 6cm One-of-kind pressure-relieving material, enhanced with added ventilation for increased airflowfor deeper, more restful sleep