Best Price Mattress 4 Inch Egg Crate Memory Foam Mattress Topper,, Us Certified. We introduce the newest in design, an innovative premium memory foam mattress topper that sleeps cooler with gel infusion. It's the memory foam you love infused with refreshing gel to provide both coolness and ultimate support. Memory foam is well known for its body contouring features and pressure relief comfort throughout your whole body. Our gel memory foam topper is an open cell memory foam made with thousands of gel beads for better airflow while providing a customized level of support. Combined with our pressure relief system, you will enjoy total relaxation with ultimate support in key areas including the head, shoulders and hips. 4-inch egg crate topper with increased airflow Amazing comfort with body-conforming memory foam Sleep cool with gel infusion that helps prevent heat from being trapped Responsive active suspension isolates motion to provide undisturbed sleep for you and your partner CertiPUR-US certified memory foam, 3-year manufacturer's warranty Product Note: Please allow up to 72 hours for the topper to rise