The Beautyrest Black Series Two Hybrid Firm Mattress combines hybrid construction with advanced cooling and support features for a luxurious, undisturbed sleep. Perfect for back and stomach sleepers, it offers firm support, deeply contouring pressure relief, and balanced comfort. Triple-Stranded Pocketed Coil® Technology provides individualized support and motion separation, while FORM™ HD Material and Micro Diamond™ Memory Foam deliver enhanced cooling and cradling pressure relief. CertiPUR-US certified, adjustable base friendly, and USA-assembled, this mattress fits deep pocket sheets, includes free delivery, and comes with a 10-year warranty.