A unique design that blends clustered fiber and foam with a half-molded memory foam core. The Cold Wire Plus Pillow gives you the best of both worlds. While the pillow is crafted to conform to your head and neck, it also provides the necessary support for your head's weight (generally about 17 pounds.) We created three loft level choices, allowing you to select the ideal height for your specific sleep position(s). The cover has a unique ambient temperature-absorbing fabric that cools while deflecting moisture away from its surface, keeping you cool and dry throughout the night.