5-Zone Memory Foam Mattress Topper Sinweek 3 Inch Mattress Topper, Us Certified. Product Details TOTAL PRESSURE POINT RELIEF: Unique 5-zone design is optimized to provide compliant support across the entire body (head and neck, torso, hips, upper legs, feet and calves). Our swirl memory foam mattress topper readily conforms to the curves and shape of your body and distributes weight evenly to alleviate pressure points for better sleep. GEL MEMORY FOAM: Our gel memory foam topper reduces heat and improves airflow for refreshing breathability. Add it to your mattress for customized comfort. GREAT WAY TO UPGRADE AN OLD MATTRESS: A comfortable and affordable way to fix a sagging mattress, soften a hard mattress, or prolong your mattress life. Instead of buying an expensive mattress, our mattress topper won?t cost you an arm and a leg. 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. Tips: Low temperature may need more time, find a suitable temperature(78?) will shorten the time. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.