Children’s sleep tremors are related to indoor cold, calcium deficiency, neurodevelopmental deficiencies, hypoglycemia and other factors: 1. Children’s body immunity is relatively poor when they are small, so if the room is cold when they sleep or if they do not cover themselves well when they sleep, it will lead to the phenomenon of cold in the body, resulting in muscle spasms, causing children to tremble when they sleep. 2. Many children tremble when they sleep, which is actually related to the body Micronutrient and calcium deficiency is directly related. At the same time, the child will also appear late teething, sweating, occipital baldness, mental irritability, muscle relaxation and some other manifestations.3. Younger children, whose neurological development of the brain is not too sound, coupled with the high excitability of the cerebral cortex and the less mature development of the myelin sheath, may also cause the child to tremble. The symptoms improve with age.4. Some children are prone to trembling when they are about to wake up, which is considered to be caused by hypoglycemia, and many children also experience dizziness and blurred vision.