Fabric Information: 150gsm CoolKnit Cool Touch Spandex Sweat Fabric (90% Nylon, 10% Spandex) + 20g PCM Our Deconovo Cooling Comforter features cutting-edge Phase Change Material (PCM) technology, designed to revolutionize your sleep experience by adapting to your body temperature and the surrounding environment. PCM technology intelligently senses your body heat and the ambient temperature, working to stabilize and maintain an optimal sleeping temperature. This means you stay comfortably cool during hot nights and warm enough during cooler times, achieving the perfect balance for a natural and restorative sleep experience.