The Serta iComfortECO F20GL plush 13.25” foam mattress is designed for supportive, cooling, and restorative sleep. The plush comfort level is great for side and back sleepers. The TerraFusion™ memory foam layer is made from 30% plant-based material that provides pressure relief and reduced motion transfer for uninterrupted sleep. The EverCool® Supreme memory foam and EverCool® Fuze gel memory foam layers support your body with extraordinary pressure relief. The Serta Foam Core support system provides durable, edge-to-edge support to help you rest comfortably all night long. Powered by REPREVE®, the cool-to-the-touch, CoolTemp™ cover is breathable and made from recycled plastic bottles. CertiPUR-US certified to be free of harmful chemicals and gasses. Mattress protector recommended. Made in the USA. Compatible with adjustable bases and Serta iComfort foundations.