span data-preserver-spacestrueThe Tempur-Pedic ProBreeze Medium Hybrid Mattress has cutting-edge support and cooling materials that work together from cover to core to keep you cooler all night long The enhanced zip-off cover provides double the cool-to-touch comfort when lying down and the exclusive PureCool Phase Change Material and Ventilated TEMPUR-APRspanstrongstrongspan data-preserver-spacestrueprovide next-level airflow and maximum pressure relief throughout the nightspan