The causes of nighttime sleep tremor include physiological factors, chills, Parkinson’s disease and so on. 1. Physiological factors: when the patient’s body is cold, the symptoms of tremor may appear due to cold stimulation. Or when the patient is overworked during the day and sleeps at night, the tremor may also appear, mainly related to muscle strain and lactic acid accumulation. 2. Chills: This disease is mainly seen in infectious factors, including bacterial infections, viral infections, etc., and patients often have tremors before high fever. 3. Parkinson’s disease: patients with Parkinson’s often have the typical symptoms of resting tremor, so patients may experience tremor at night while sleeping. If the frequent occurrence of nighttime sleep tremor should be timely to the hospital’s neurology clinic, for the cause of the active treatment, so as not to delay the condition.