GEL MEMORY FOAM MATERIAL: Our memory foam mattress topper readily conforms to the curves and shape of your body, distributes weight evenly to alleviate pressure points for better sleep. MORE COMFORTABLE SLEEP: The cooling gel mattress topper reduces heat and improves airflow, keeping you dry and comfortable all night. Customize your sleep experience for the perfect balance of softness and support. SOFT BUT NOT FOLDABLE: Our mattress topper is soft and comfortable, but do not roll it up for long-term storage after opening, and avoid placing heavy items on top to prevent tearing. CertiPUR-US CERTIFIED: Our Gel Swirl memory foam topper is made of CertiPUR-US certified materials. The Gel Swirl memory foam topper meets or exceeds standards for content, emissions, and durability. BEFORE FIRST USE: Leave the memory foam flatly in a well ventilated area for 48-72 hours until it’s fully expanded. In addition, we offer a three-year warranty and 24-hour manual customer service to ensure your after-sales service. IMPORTANT: This product is intended to be used on top of an existing mattress and is not designed for standalone use.