Emerald Home ESG12KM 12" Cool Jewel Mattress Starlight Gel with Memory Foam, King Comfortable, cool, supportive, and durable 12" Gel memory foam mattress Air flow ventilation Construction means Air can flow freely, giving you a cooler sleeping experience Foam is CertiPUR-US Certified for a safe and clean sleeping experience Compressed and boxed for easy in-home delivery and setup Warranty: 10 year Non-Prorated