Experience extraordinary sleep at the intersection of luxury and innovation with the Beautyrest Black Collection's premier materials and advanced sleep technology. Plus, for an even more luxurious upgrade, Series Three Pillow Top models feature exclusive 2K Nano Coils for enhanced, individualized support throughout the night. Triple-Stranded Pocketed Coil Technology offers our highest level of individualized support and motion separation, so you can rest undisturbed. A layer of specialized foam is quilted into the sleep surface for exceptional pressure relief. A premium memory foam layer, infused with diamond particles, is designed to help move heat away from the body for a cool sleep. Ventilated latex layer maximizes airflow and provides advanced pressure relief. A layer of 2K Nano Coils enhances conformability for increased, individualized support All foams are CertiPUR-US certified. Our mattresses are proudly assembled in the USA. Adjustable base compatible.