Babies do not sleep in the middle of the night to distinguish according to the reasons, generally can be solved by changing the infant sleep habits, supplemental trace elements, reasonable regulation of diet, etc., the specific solution should be based on the baby’s specific reasons. 1. Poor sleeping habits: some babies sleep more during the day, the biological clock becomes disordered, but more excited at night. Can be used to change the baby sleep time period way, such as try not to let the baby sleep in the daytime, or to reduce the baby sleep time during the day, the baby sleepy at night, the night sleep time will increase, the quality of sleep will also improve. 2. Calcium deficiency, lack of vitamin D: If the baby does not sleep in the middle of the night, and accompanied by sweating and easy to startle and other symptoms, this time you need to take the baby to the hospital for relevant examinations, to be clear after the cause of the disease, and then for the supplementation of the relevant elements. 3. Improper diet: the baby’s gastrointestinal development is not yet very sound, absorption and digestion function is relatively poor, feeding, if the baby at one time to eat too much, will lead to cause indigestion, which in turn affects the night sleep. In this case, you need to correct the feeding method in time and feed on demand. The baby does not sleep in the middle of the night for a number of reasons, if this situation occurs for a long time, it is recommended to seek medical attention to identify the cause of the disease and then targeted treatment.