The average head weighs 10 to 12 lbs and the neck and shoulder muscles work very hard to hold the head up. This repetitive use of the muscles along with daily work, physical stress, improper sleeping habits, poor posture, previous neck injuries and emotional stress can all cause neck muscles to tighten with time. When it is partially inflated, DR-HO’S ® Neck Comforter ™ functions like a neck support and provides neck support to your own comfort level. Sitting with DR-HO’S ® Neck Comforter ™ for 20 minutes after fully inflating it to your comfort level allows the neck muscles to fully stretch and relax. The neck muscles are slowly elongated, which allows the pressure to be released as the weight of the head is taken off of the shoulder and neck muscles. The final result is 20 minutes of relaxation that can lead to an improved range of motion and the release of built up neck tension.