The QUADCOOL™ Memory Foam mattress delivers our latest and most advanced cool-comfort technology. An ideal solution for hot sleepers, QUADCOOL™ has a medium feel and features a cool-to-touch cover and gel-infused memory foam with a ventilated 7-zone pressure relief system for personalized comfort. A layer of Airflow Comfort Foam offers enhanced ventilation, and the sturdy and durable base foam layer is infused with refreshing green tea for long-lasting freshness. Plus, this mattress ships in a compact WonderBox™ that’s expertly engineered to leave a smaller carbon footprint. All four layers of high-quality foam in this mattress are CertiPUR-US® certified and wrapped with an OEKO-TEX® certified mattress cover to ensure there are no harmful chemicals where you sleep.