The Series Three XCS 14.5’’ mattress by Beautyrest Black is a hybrid model designed for firm support, advanced cooling, and split-head flexibility. Designed with split-head sizing, it pairs with a compatible adjustable base to allow each sleeper to independently adjust their head position for more personalized comfort. Its firm feel is ideal for back and stomach sleepers who prefer a supportive, more level sleep surface. FORM™ HD Material contours to your body to relieve pressure without restricting movement, while Dynamic Response® Memory Foam and Micro Diamond™ Memory Foam enhance responsiveness and help promote a cooler sleep. Triple-Stranded Pocketed Coil® Technology delivers individualized support and motion separation to help you rest undisturbed. The ContourCover™ design nestles you into the comfort layers while accommodating split-head construction for a smooth, tailored feel. A cool-to-the-touch Sleep Climate™ Surface works with BlackICE® Max Cooling Technology, which provides 30% more cooling power to help move heat away for cooler, longer-lasting comfort. Made with eco-friendly CertiPUR-US foam that meets rigorous standards for emissions, content, performance, and durability. Mattress protector recommended. Assembled in the USA.