Neck pain after sleeping may be due to acute muscle injury, pillow, cervical disc herniation and other factors, different reasons for different treatment methods, common treatment methods are general treatment, physical therapy, drug therapy, and so on. 1. Acute muscle injury: If there is a direct stimulation by cold wind, it may lead to acute injury to the muscles behind the neck, so after waking up, you will feel localized severe pain, you can use local hot compresses or physical therapy to improve the way, you can also apply non-steroidal anti-inflammatory drugs to relieve pain, such as ibuprofen. 2. Falling pillow: Mostly because of sleeping in an inappropriate posture or pillow height is not appropriate, resulting in acute injury to the muscles around the neck and the fascia caused by. If the pain is more serious, it can also be treated by massage. 3. Cervical disc herniation: In the case of cervical disc herniation, the pain at the back of the neck is caused by the sleeping posture and the height of the pillow, which leads to the onset of the disease. The soreness can be relieved by localized acupressure. If the soreness in the back of the neck after sleeping is not relieved for a period of time, it is recommended that the patient go to a regular hospital in time to get a clear picture of the condition and be treated accordingly.