Sleep Comfortable: gel mattress topper fits the body curve and hugs the body contour, helps relieve back pain and pressure point. High-density memory foam provide adaptive comfort and support, makes every sleep a extravagant indulgence. Unique 2-Layer Design: This 3 inch mattress topper is crafted from 1.2” gel memory foam and 1.8” Bamboo Charcoal supportive foam. Combining gel memory foam with support foam, the top side is soft, and the bottom side is firm. It upgrade your bed to more comfortable and soft - while still being supportive. Multi-Use Topper: Saving yourself from the uncomfortable bed without spending high replacement cost, the foam topper able to decrease the discomfort of an old bed without having to splurge on a whole new mattress. It’s an ideal choice for bedroom, guestroom, living room, college dorms and more. Removable & Breathable Fiber Cover: Use skin-friendly and breathable fiber, zipper closure for convenient disassembly and washing, with adjustable elastic straps and anti-slip surface backing to prevent sliding. Healthier sleep environment: The gel memory foam mattress topper is made of CertiPUR-US and OEKO-TEX certified materials, so no worries about its safety, please rest assured to use it. Size and Instructions for Use: Queen Size 60 x 80 x 3 inches, Before first use, pls unzip and remove the cover, leave the memory foam flatly in a well ventilated area for 48-72 hours until it’s fully expanded. Low temperature may need more time, find a suitable temperature(78℉) will shorten the time. Convenient & Dependable Customer Support: Our mattress topper ensures your complete satisfaction with a 365-night trial period and a 10-year coverage for quality-related concerns. If you have any questions, we are here to promptly assist you with a resolution.