There are pros and cons to newborns sleeping on their mother’s chest, and they should always sleep under adult supervision. Newborns lying on the mother’s chest to sleep can increase the child’s sense of security, sleep will be more solid; secondly, lying down to sleep on the abdomen is not easy to get cold, you can reduce the occurrence of abdominal distension; lying on the mother’s chest can also help newborns to practice lifting their heads and other movements, the newborns are good. But lying on the mother’s chest to sleep will affect the mother’s rest, the weight of the mother’s chest increased, will affect the breathing; secondly, lying on the stomach may lead to the child’s neck, the nose may be blocked, which in turn affects the respiratory state, and may even be suffocated. If you want to let the child lie on the mother, must be in the mother awake or have adult supervision, to avoid accidents.