Premium Comfortable Material Our queen mattress combines 1 of gel-infused memory foam with a 5 high-density sponge base for optimal support. The gel memory foam contours to your body, while the breathable, hypoallergenic and skin-friendly fabrics cover ensures a soft and healthy sleeping surface. Mattress In a Box Queen size mattress is compressed and packed in a box for easy transportation to your bedroom. Simply unbox, unroll, remove the protective film, and watch the soft memory foam mattress expand to its full size ready to use in minutes! Easy Cleaning & Anti-Slip Bottom The back of the queen bed mattress cover has a convenient detachable zipper for hassle-free machine washing. The anti-slip bottom of the mattress cover ensures the mattress stays securely in place on any surface. Breathable & Healthy Certified by both USDA BIOPREFERRED PROGRAM and Oeko-Tex Standard 100, our gel memory foam sponge and fabrics are independently tested to meet strict safety and environmental standards.