Beautyrest Black® LX-Class Firm Tight Top Split California King Mattress

Elevate your sleep to a luxurious reward night after night. As a part of the most advanced collection yet, Beautyrest Black® Hybrid LX-Class offers up to 21% more support where your body needs it the most.* With help from new plant-based cooling technology, the collection provides up to 18% more cooling power to keep you comfortable as you fall asleep and all night long.** In addition, patented memory foams unlock immediate pressure relief and personalized support. These innovative features are paired with an all-new modern design and hybrid construction to create a first-class sleep experience that will leave you feeling invigorated to take on your day. *in the center-third of mattress, exact percentage varies by model **vs. Harmony Lux Collection for the first 20 minutes