Upgraded Design: Features a bottom layer of 5cm gel memory foam and an extra layer of 2cm pillow top bamboo fiber cover filled with ultra-soft down alternative fiber. Soft combined with support for this upgrade will rejuvenate your old mattress. Cooling & Breathable: The innovative bamboo fiber pillowtop cover adapts unique weaving technology, silky and cool to the touch, which can enhance air circulation, perfect for hot sleepers. Together with the premium gel-infused in memory foam, ensuring a cooling and breathable sleep environment. Pain Relief & Contour Support: The high-density gel memory foam layer easily conforms to the curves and contours of your body, even if you're a side sleeper. It keeps your spine in a natural alignment and prevents shoulder/back/neck pain. The plush bamboo fiber layer ensures a gentle touch as sleeping on a cloud feels like, immediately elevating your sleep to a delightful level of comfort. Full Mattress Encasement & Easy to Clean: The elastic edge style encases the memory foam layer perfectly, fitting mattresses ranging from 8 to 21 inches deep securely, easily removing the bamboo fiber layer for washing or replacement without disturbing the foam layer. Machine washable, with a gentle cycle in cold water and low-temperature tumble drying. Safe & 60-Day Guarantee: ELEMUSE mattress topper has been certified by CertiPUR-US and OEKO-TEX for durability, which means that all components are free of any harmful substances and are produced in an eco-friendly manner. It is also suitable for babies and people with sensitivities and allergies. In addition, we provide a 60-day worry-free shopping guarantee, and any dissatisfaction can be fully refunded.