The Encore® Normandy Plush Mattress features a soft, gel-infused foam layer that conforms to your body and helps keep you cool. The 6" fabric-encased coil system creates a strong foam border, allowing for personalized support even at the edge of your mattress. With a designer knit fabric cover stretching in four directions, this mattress allows you to get the most out of your comfort layers while sleeping. 10-Year Limited Manufacturer’s Warranty.