Most of your pains in any part of the body go away while you rest or sleep in the night. The reason can be quite obvious that when you sleep in the night for about 7-8 hours, the muscles of your body gets relaxed. But if you have a persistent neck pain, there are few precautions which are quite helpful.
Try avoiding using stiff or high pillow that keeps your neck muscles flexed overnight and can cause pain and stiffness in the morning. If you have a habit of sleeping on the side, try to keep your spine straight with a help of a higher pillow under your neck. If the uneasiness persists for a very long time you should go for neck pain treatment Singapore.