This contoured visco-elastic Memory Foam pillow cradles your head, supports and relieves pressure and pain on your neck and back. When using the pillow on your side, tilt your head back to open up the airway and reduce snoring. The pillow fits a standard pillowcase and is recommended for use with one. Includes Coolmax zipped removable washable cover. Coolmax is a performance fabric that helps to keep you cool while you sleep.