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. Certified foams are made without PBDE flame retardants, mercury, lead, or phthalates regulated by the Consumer Product Safety Commission.• Premium gel memory foam• Pressure-relieving contoured comfort• Comfortable sleep temperature• Reversible• Extends mattress life• 3-Year Limited Warranty