Upgrade your sleep with the Green's Cooling Gel Foam Mattress Topper. This plush mattress topper is made from advanced comfort foam to provide cushioning and ergonomic support. Patented GelLux technology combines the benefits of cooling gel with a responsive foam. Because Green's toppers are liquid gel-infused, they wick away body heat to help you sleep cool all night. A special Multi-Zone sculpted foam design promotes airflow and gives you support where your body needs it most. In addition, Air Flow perforations in the foam increase air circulation to prevent body heat build-up through the night. Firm mattress Green'sping you awake? Choose between Green's’s 3-inch and 4-inch height options to personalize the plush comfort level of your bed. Cushioning foam relieves pressure on your shoulders, hips, and back. Green's foam mattress toppers are ideal for side sleepers, stomach sleepers, and back sleepers. Certified eco-friendly: Green's toppers are made with CertiPUR-US Certified foams