High-density memory foam material contours to your head and neck for optimum support in any position. This pillow provides pressure relief and relaxes muscles so you wake up feeling refreshed. A resilient built-in gel top offers an instant cooling sensation to help dissipate heat and keep you comfortable. It helps maintain proper head and neck alignment. Easily portable, the 5.5-pound pillow is the latest breakthrough in memory foam technology offering enhanced airflow design keeps heat away from the head and neck throughout the night.