Designed by Chiropractors specifically for the Back Sleeper, The Slumberlicious™ pillow has a 4″ indentation in the center which cradles the back sleeper’s head while offering gentle support under the neck. The under neck channels offer two slightly different widths to accommodate longer or shorter necks for the perfect support for each individual. Includes a removable 300 thread count washable cotton sateen zippered protector.