Premium gel fusion memory foam relieves pressure points. Reversible: choose your comfort side. Cradling comfort or gentle massage. Instantly upgrade your mattress with comfort and support.  All the foam used in this product carries the CertiPur-US® Seal. It’s a certification you can trust. This certification ensures the product is made without harmful chemicals and is tested by independent labs to meet rigorous standards for content, emissions, durability, and performance• Premium gel memory foam• Pressure-relieving contoured comfort• Comfortable sleep temperature• Reversible• Extends mattress life• 3-Year Limited Warranty