Three layers of foam for balanced support and softness: quilted top layer of 1" Memory foam; Middle transitional foam layer is ventilated and breathable; Bottom base layer provides the support your body needs. Memory foam is an extraordinary therapeutic pressure relieving material that gently molds to the shape of the entire body offering personalized support and supremely cushioning just where you need it for the ultimate sleep experience. Unique top Quilting offers a soft "pillow-like" Cushion for your sleeping surface. The knitted fabric cover helps make the mattress breathable and offers a very soft touch for the ultimate in comfort. After unpacking, allow 24 hours for the topper to regain its Loft.