Your pillowcase just got so much cooler. Our proprietary fabrication combining cooling nylon & spandex was designed to provide maximum thermoregulation. The breathability & temperature control properties keep you cooler & more comfortable for the lifetime of the product. That's right, the cool effect never washes out! Sleep better without disruptive wake-ups from hot flashes, night sweats & discomfort.Breathable & silky smooth, this pillowcase gently interacts with your skin and hair throughout the night, alleviating bedhead & sleep wrinkles. It also offers sweat-free sleep and minimizes oil-based acne breakouts.