Our best Hospitality model starts with our firmest ComfortFlex continuous coil system with the unique ComfortGuard side support system for the most supportive innerspring available. The side support system gives you the most useable room on any mattress by allowing you edge-to-edge sleeping area. Then we place a very firm layer of polyurethane to complement the firm innerspring for a remarkably firm supportive sleep system. We top this sleep system off with two softer comfort layers quilted to an attractive but strong and comfortable cover for a soft initial feel but a firm supportive mattress. We build this mattress the same on both sides for more comfort and durability.