For luxurious comfort and cooling, choose the medium-firm Kira mattress by Serta Perfect Sleeper. Breathable CoolFeel fabric enhances its soft cover with plant-derived materials that instantly feel cool to the touch. Designed to relieve pain by easing pressure points, HexCloud gel memory foam features a uniquely perforated surface for restorative comfort. Exclusive to Rooms To Go, the Serta XLS Band delivers targeted support for your back with a layer of responsive latex exclusive to Rooms To Go models. Including a 1000 Edition Custom Support Coil System, individually wrapped coils adjust to your movements while maximizing motion separation between partners. PillowSoft HD foam cradles your body for a plush contouring experience. PillowSoft Aire foam and balanced support foam combine gentle cushioning with a supportive feel. Extending the sleep surface, BestEdge foam encasement provides a deep foam rail to reduce roll-off. 10 Year Non-Prorated Warranty.