Outlast Cotton PillowExperience the perfect sleep year round with our Outlast cotton pillow, designed to adapt to your bodys needs in every season. Whether its the warmth of summer or the chill of winter, this pillow utilizes advanced temperature regulating technology to keep you comfortable all night long. It automatically adjusts to changes in your body temperature, ensuring you stay cool when it's hot and warm when it's cold so you can enjoy a consistent, restful sleep