As babies grow up, some of them will appear to sleep on their stomachs. If parents give him a different position, he will soon adjust to the state of lying down. In fact, the baby sleeps on his back is also a way to sleep, as long as the baby feels comfortable to sleep on his back, and do not block the mouth and nose this is no harm. For some small months of age for the baby, like to sleep on his back because this kind of sleep position and the fetus in utero flexed very close to the way for the baby is a self-protection position on his back to sleep may feel a little more secure, for some physiological colic baby, sleep on his back to increase the abdominal pressure is also effective in relieving pain and uncomfortable feeling. Some people say that the baby sleeps on his back is smarter, in fact, this is no scientific basis, but based solely on his own will choose to make themselves feel comfortable and safe sleeping position, that he is smart to some extent is also possible. At the same time the baby sleeps on his back will not oppress the back of the baby’s head, the shape of the baby’s head is also very helpful, the only thing worth noting is that the baby sleeps on his back, the baby’s mouth and nose must not be blocked, so that there is a risk of asphyxiation. Babies like to sleep on their stomachs, just a normal way of sleeping, no matter which way of sleeping, as long as the baby is comfortable, let the baby choose their favorite sleeping position, is also a choice of mothers. But if the baby suddenly changed their usual sleeping position and changed to sleep on their stomach, we have to check to see if the baby is the body of what condition.