A neck pillow can be a good option if you have neck pain or are unable to sleep on your side. It is also a good option when you need help sleeping on your back. A neck pillow should be used in conjunction with a regular pillow and is most effective when placed under your head by moving the neck pillows upward. Look for a neck pillow that matches the sleeping position you prefer, as many are designed to support different directions of sleep. As with any type of pillows, your neck weight can add slackness which will ultimately cause discomfort to your neck; make sure your neck pillow has enough filling so as not to feel the pillow from all sides. Stretch out and turn over on your back with your arms at your sides. If you are suffering from a stiff neck, this can be one of the most effective ways to treat it.