The pillow gently guides your spine into a straight line and keeps your neck and back properly aligned, so it supports your head and neck at all angles, wake up feeling refreshed and energized in the morning. Whether you prefer soft or firm pillows, this cooling pillow will meet your need for sleep. The ergonomic shape is designed to relieve neck and shoulder pain and muscle tension, for a better night's sleep. Neck Pillow curves and swerves just like your body to give those places the right-shaped support and comfort. Customize your sleep position for the best sleep. Designed with a YKK zipper, so you can easily adjust the filling to your preferred firmness level.