Baby sleep at night is not solid easy to wake up easy to cry can be seen in physiological phenomena, nutritional vitamin D deficiency, gastrointestinal dysfunction, etc., intervention needs to be specifically analyzed, such as the baby’s teething period does not require special intervention. 1. Physiological phenomenon: such as young babies in the period of eruption of milk teeth, the above performance can occur, may also be accompanied by salivation, etc., without special treatment, close observation can be, if necessary, need to be stomatology consultation. 2. Nutritional vitamin D deficiency: such as nutritional vitamin D deficiency rickets, the baby in the early stages of the disease can be manifested as sleep at night, easy to wake up easy to cry and other phenomena, some of which can be accompanied by signs of bone changes, the need for a reasonable diet, as appropriate, sun exposure, vitamin D supplementation. 3. Gastrointestinal dysfunction: this kind of baby may have abdominal distension, abdominal pain and other abdominal discomfort symptoms, easy to sleep at night, easy to wake up easy to cry phenomenon, need to pay attention to a reasonable diet, if necessary, oral micro-ecological agents (such as clostridium casei bacterial powder) to ease the symptoms of abdominal discomfort. 4. Other: such as febrile illnesses, the baby can be due to the rise in body temperature to produce discomfort, the above performance, need to actively symptomatic reasonable fever, and the treatment of the original disease. The above drugs need to be used under the guidance of a physician, it is recommended to actively seek medical attention, by the judgment of a specialist to intervene.