12 Cooling California King Mattress - Gel Memory Foam with Phase Change Cover, Pressure Relief & CertiPUR-US Certified

Phase Change Cooling Cover: PCM-infused fabric actively absorbs and releases heat for temperature-balanced sleep. Pressure-Relieving Gel Memory Foam 3" ventilated layer pulls heat from the body while cushioning joints Responsive Transition Layer: 4" adaptive Fria foam conforms to curves for balanced, motion-isolating support. Durable High-Density Base 5" resilient foam core provides foundational stability and prevents sagging Easy Self-Setup Delivery Ships compressed in a box expands to full size within 72 hours without tools or assistance