Common causes of children kicking in their sleep at night include high room temperature and vitamin D deficiency. Common solutions include lowering the room temperature, calcium and vitamin D supplementation. 1. Room temperature is too high: If the temperature in the bedroom is too high at night, the child will unconsciously kick the covers away when he feels too hot during sleep. At this time, you need to lower the room temperature and adjust the room temperature to the right temperature, such as turning on the air conditioner, turning on the fan and opening the window to ventilate the room. 2. Vitamin D deficiency: children with vitamin D deficiency are prone to hypocalcemia because calcium and phosphorus metabolism are affected, resulting in increased sympathetic nerve excitability, so children will be irritable and restless, night terrors, kicking away the blankets and other abnormal manifestations. Parents can give their babies vitamin D and calcium supplements under the guidance of doctors, and then they can mostly get better. If the child’s nighttime sleep disturbance persists unrelieved, also need to be alert to the possibility of surgical diseases, need to consult a doctor in a timely manner, by a professional doctor to clarify the cause of the disease, to formulate individualized diagnosis and treatment plan.