The new TEMPUR-PRObreeze Medium Hybrid has the latest and most advanced technology yet. The Smartclimate® Max Dual Cover System is an enhanced zip-off cover with double cool-to-the-touch power so you can feel cooler the instant you lie down. PureCool+™ Phase Change Material is a Tempur-Pedic exclusive, next-generation technology that absorbs heat so you feel cooler while you fall asleep. TEMPUR-CM+™ Material is advanced TEMPUR® Material redesigned with maximum airflow for all-night cooling comfort. Original TEMPUR® Material has advanced adaptability for truly personalized comfort and support. Hybrid Technology includes 1000+ premium spring coils that are designed in-house for easy movement.