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Elevate your sleep to a luxurious reward night after night. As a part of our most advanced collection yet the Beautyrest Black L-Class 13.5″ Medium Mattress offers up to 21% more support where your body needs it the most. * With help from our 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 our patented memory foams unlock immediate pressure relief and personalized support. Sleep soundly knowing your mattress has antimicrobial protection to keep your mattress fresh and clean from odor causing bacteria. *** These innovative features are paired with an all-new modern design 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 *** this product does not protect users against bacteria viruses germs or other disease organisms. Color: Geometric.