The neck pain in the morning may be related to the following reasons: 1, there may be a case of fallen pillow. This condition is the most common in clinical practice and is characterized by a sudden onset of severe neck pain with severe restriction of movement after sleep, when the patient had no symptoms before sleep. This condition usually relieves itself within 3-5 days, but some patients have continuous pain. 2. It may be caused by cervical spondylosis. Some patients with cervical spondylosis tend to have increased symptoms in the morning when they wake up, i.e., they have pain in the neck. 3. It may be caused by excessive fatigue of the neck muscles, for example, if the patient has done excessive exercises involving the neck and shoulder back before sleeping, he may feel significant pain after a sleep. 4. If there is a direct violent blow to the neck before sleep, or if there is a pulling or twisting injury, you may feel localized pain after waking up, and it may be significantly increased compared to the situation before sleep.