The 12-inch Memory Foam Mattress is a memory foam mattress that encompasses the comfort of memory foam, minimizes pressure on the body, and provides balanced support. Within minutes, it creates a perfectly personalized and balanced form around the body. This 12-inch memory foam mattress will support body weight evenly, relieve pressure focused on the shoulders, hips, and feet, and eliminate motion disturbance. The result is a unique and unprecedented sleeping experience. The memory foam mattress collection provides lasting comfort, with a dense foam core that ensures years of unbridled durability. For your convenience and even more cost savings, this mattress is shipped compressed, rolled and vacuum sealed. Xilinmen shows 2% fiberglass. JBM is 100% polyurethane foam pad .