A combination of high-density base foam and memory foam makes this 10-inch mattress the ultimate sleep product. The tight-top cover is made of 100-percent polyester with the bottom featuring non-slip fabric and a zipper, making it a breeze to remove and wash. Compatible with adjustable bed bases and box springs.【Dual-Layer Comfort System】: The mattress combines a 2.5-inch layer of memory foam for body-contouring pressure relief with a 7.5-inch high-density base foam for durable support and stability.【Removable & Washable Cover】: Featuring a convenient zipper, the tight-top polyester cover is easy to remove and machine wash, promoting a clean and hygienic sleep environment.【Non-Slip Bottom & Adjustable Base Compatible】: The bottom cover is made of a non-slip fabric to keep the mattress securely in place. It is also designed to be compatible with adjustable bed bases and box springs.【CertiPUR-US Certified & Safe】: The foams used are CertiPUR-US certified, ensuring they are made without harmful chemicals. The mattress also includes a fire-resistant (FR) barrier and meets federal flammability standards.【Convenient Roll-Packed Delivery】: Comes compressed and rolled in a box for easy handling, transport, and setup directly in your room.