The Alexandra Pillow Top Mattress features an 858 pocket coil unit. Individually wrapped, these coils provide pressure relief and support, while they both conform to the body and reduce motion, thus minimizing partner disturbance. Made by Total Comfort, in Two Rivers, Wisconsin, the Alexandra Pillow Top features a fire retardant quilting fiber, 1" gel quilt foam, then 3/4" quilt foam, a 1 1/2" plush foam layer, with 1.25 ounce pillow top decking, and an additional 1 1/2" plush foam for pillow soft comfort with 1/2" memory foam. All this support and cushioning material is suited inside a neat, 4 way stretch, knit cover. 15 year non-prorated manufacturer's warranty.