Emma Hybrid Thermosync Mattress Rated “Best Hybrid Mattress” by Ideal Home, the Emma Hybrid Thermosync delivers six layers of advanced comfort for a perfect night’s sleep. Formerly known as the NextGen Cooling Mattress, it’s designed to keep you cool, supported, and comfortable all night long. ThermoSync™ Technology: Graphite-infused foam actively regulates your body temperature to prevent overheating and promote deeper sleep. Infinity Pocket Springs: 7-zone support adapts to your body for proper spinal alignment and pressure relief, no matter your sleep position. Halo Memory Foam™: Molds to your body for a full-body hug and targeted support. UltraDry™ Cover: Breathable, moisture-wicking, and machine washable to keep your mattress fresh. Motion Isolation: Minimizes partner disturbance for uninterrupted rest. With premium, durable materials and UKFR certification, the Hybrid Thermosync is backed by a 10-year warranty for long-lasting quality. Medium firmness (7.5/10) offers the ideal balance of softness and support. Emma Size: Super King (6')