JERFIT 12 Inch King Size Mattress, Firm Hybrid Mattress in a Box with Copper Cooling Gel Memory Foam, CertiPUR-US Certified, Motion Isolation, Edge Support, Cool Touch Cover

JERFIT Cool-Touch Fabric: Features special conductive yarns that actively pull heat away from the body to maintain a consistently cool and comfortable sleeping surface. Copper Cooling Gel Memory Foam: Copper-infused foam layer effectively regulates temperature by drawing excess heat away, while contouring to the body to relieve pressure points. 740 Individually Wrapped Coils: A high-density coil system provides targeted support, enhances durability, and dramatically reduces motion transfer across the mattress surface. Dynamic Edge Support: Reinforced perimeter coils provide robust edge-to-edge support, increasing the usable sleep surface and making getting in and out of bed easier. Hi-Definition Transition Foam Layer: A responsive foam layer enhances the buoyant, weightless feel of the mattress and prevents the feeling of sinking into the coils. Firm Feel Support: Delivers a firm, supportive sleep surface that promotes proper spinal alignment and is ideal for back and stomach sleepers. CertiPUR-US Certified: The foams are independently certified to be made without harmful chemicals, ensuring they are low in VOCs for indoor air quality. Cooling Breathable: The combination of cool-to-the-touch cover and open-cell, copper-infused foam promotes maximum airflow for a temperature-neutral sleep environment. Hybrid Design: Merges the contouring comfort of memory foam with the traditional support and bounce of an innerspring system for the ideal sleep experience.