Used, cover might need washing before use cooling ice silk cover hawthyhome double mattress topper features a skin-friendly nanoparticle ice silk cover, which brings a cool touch and has good breathability. It can automatically adjust humidity, and has the characteristics of slow heating. And unique weaving techniques are used to enhance air circulation,making it more breathable and cooler than regular double mattress toppers. Keeping you cool and comfortable all night. Advanced gel-infused memory foam our 3-inch double mattress topper's high-density memory foam is engineered with aviation-grade memory foam infused with cooling gel beadsand has an open-cell structure which absorbs and disperses heat, maintaining good breathability. And the 3-inch sponge perfectly contours to your body, distributes weight evenly, reduces body pressure, and effectively improves sleep quality. Increase comfort & anti-slip hawthyhome 3-inch memory foam mattress topper double bed is a perfect addition to the mattress, which can increase softness and help disperse stress on your body, making you sleep more comfortably. Adjustable elastic straps and an anti-slip surface backing keep it securely in place, preventing any unwanted shifting. The convenient zipper closure allows for easy disassembly and washing. Certified quality & washable hawthyhome mattress topper double bed are certipur-us certified, ensuring low odor, high-quality materials, excellent performance, and durability. Each memory foa...