The baby cries after sleeping for about an hour, which is considered to be related to the surrounding environment, dietary factors, and nutrient deficiencies. 1. Surrounding environment, if the surrounding environment is too high temperature, too noisy or too bright during the baby’s sleep, it may affect the baby’s sleep, and this symptom occurs. 2. Dietary factors, if the baby usually do not eat enough, sleep during the process of hunger may affect the baby’s normal sleep, sleep an hour or so on the symptoms of crying. 3. Nutrient deficiency, if the baby’s body lacks calcium, vitamin D and other nutrients, may lead to abnormal nerve function, such symptoms. Baby sleep an hour or so on the cry, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause, under the guidance of the doctor to give targeted treatment or treatment.