【Gel Memory Foam】: Memory foam infused with gel that captures and distributes heat to improve your sleeping experience.High-density memory foam provide adaptive comfort and support, helps relieve common pressure points and prevent you from sinking into foam. 【Premium Fiber Surface】: Use skin-friendly and breathable fiber, with adjustable elastic straps and anti-slip surface backing to prevent sliding. Zipper closure for convenient disassembly and washing. 【Certification】: The memory foam mattress topper is certificated CertiPUR-US and cover is certificated OEKO-TEX. 【Tips】: Allow 24-48 hours for new foam smell to dissipate and fully expanded. Low temperature may need more time, find a suitable temperature(78℉) will shorten the time. 【Customer Service】: We offer a 365 night 100% satisfaction guarantee. 10 -Year Warranty for Quality-Related Issues, If you have any question, please contact us and we will provide you with a solution.