12" Mattress - Medium-feel mattress. Pressure-Relieving Material One-of-kind Tempur-Pedic® Ventilated Advanced Relief™ Material is enhanced with added ventilation for increased airflow - for deeper, more restful sleep. SmartClimate® Cover Our patented removable, machine-washable, and cool-to-the-touch cover draws heat away from your body. Heat-Diffusing Layer This exclusive technology absorbs excess heat throughout the night and provides an enhanced cooling effect. Pure Cool® and Pure Cool® Plus Material Our innovative material is designed to pull heat away from your body to help you sleep cool - all night long. SmartClimate® Cover System Feels instantly cool and features a convenient zip-off outer cover that is machine washable. Ventilated Advanced Relief™ Material Our one-of-kind pressure-relieving material, enhanced with added ventilation for increased airflow. Cool When You Lie Down The cool-to-the-touch SmartClimate® cover is made with cooling fibers that help you settle in for the night and relax. Cool As You Fall Asleep The cooling layer reacts to your body within minutes, dissipating excess heat and delivering a soothing sensation. Cool All Night Long Our most advanced Pure Cool® and Pure Cool® Plus materials help you sleep cool all night and wake up feeling refreshed. Rest Assured Designed and assembled in the USA with a 10-year limited warranty for comfort you can rely on.