If a newborn baby does not cry and sleep, this situation does not belong to the normal, need to analyze according to the specific circumstances: 1, belongs to the normal phenomenon, if the newborn baby is only quiet, do not cry and sleep more, but the mental state is better, wake up after eating milk is also normal, growth and weight is also developed and the same age children, indicating that belongs to the type of quiet temperament characteristics, belongs to the normal phenomenon, parents do not need to worry too much; 2, belongs to the abnormal phenomenon, if not cry and sleep, and wake up after the mental state is relatively poor, obviously there is crying and restlessness, eating milk is also bad. Parents do not need to worry too much; 2, belongs to the abnormal phenomenon, if do not cry, sleep, and wake up after the mental state is relatively poor, obviously crying and restless, eating milk situation is also bad, we should consider is caused by bacterial infection and other factors, because some newborns with sepsis early will show this situation.