Our expandable neck pillow provides neck pain relief. Elevates the jaw which in turn brings optimal spine alignment & relieves the nerve's tension. Helps prevent wrong forward & down head position. Ideal for herniated discs. Stretches stiff muscles around the neck & results in perfect neck posture. Increases blood circulation to the structures of the cervical spine, helping to oxygenate muscles, nerves, tendons, thus decreasing pain and promoting relaxation.