Experience the benefits of better sleep with Beautyrest's Black Hybrid Bx-Class 12.5"" Hybrid Firm Mattress. Designed at the intersection of luxury and innovation, this hybrid model features a Zoned T3 Pocketed Coil support system for targeted support across your entire body. Advanced cooling technology cools the mattress's surface so you can sleep luxuriously cool, while specialized layers of Beautyrest Gel Memory Foam and Firm Comfort Foam provide pressure relief all throughout the night.