Babies who don’t sleep at night need to be improved for the actual situation. Dietary factors require adjustments to feeding habits. Environmental factors need to change the environment, and excessive sleep needs to reduce the time of daytime sleep. Disease factors need targeted treatment. 1. Dietary factors: If the child is hungry or overfed, it will affect nighttime sleep, so it is recommended to adjust feeding habits. 2. Environmental factors: If the living environment is too cold or too hot, it will affect the sleep, and should maintain the appropriate humidity and temperature. 3. Too much sleep: too much sleep will also affect the night sleep, you should control the daytime sleep time, you can play some soft music at night. 4. Disease factors: If the child has colic and vitamin D deficiency disease, it will affect the night sleep. If it is colic can massage, airplane hold, do exhaust exercises and other relief; if it is vitamin D deficiency need to supplement vitamin D. The use of drugs must be strictly in accordance with the doctor’s instructions, not blindly. Babies do not sleep at night there are many reasons, may also be caused by gastrointestinal indigestion and other factors, if long-term, it is recommended to go to the hospital to receive examination and treatment.