Newborns do not sleep spirit is still very good situation, consider and daytime sleep too much, mental over-excitement, disease factors related. 1. too much sleep during the day: for newborns, if the daytime sleep time is too much, may cause not sleep spirit is still enough phenomenon, belongs to the common physiological manifestations. 2. Mental over-excitement: for some newborns, they may be more curious about the outside world, so they will not sleep and still have a good spirit. 3. Disease factors: when newborns have a lack of vitamin D and calcium in the body, can cause sympathetic nerve excitation, thus appearing not sleep, spirit is very good symptoms. Newborns do not sleep spirit is also very good, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.