5-Zone Memory Foam Mattress Topper Sinweek 3 Inch Mattress Topper, Us Certified. Product Features 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. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!