Newborns sleep on their stomachs time is not strictly limited, but generally not recommended for a long time sleeping on their stomachs, it is best to adjust the sleeping position after 10 to 15 minutes. In general, the newborn period is not recommended to sleep on their stomachs, long time sleep on their stomachs is not only not conducive to the growth of the normal shape of the spine, at the same time may increase the risk of abdominal distension, choking, choking and other risks, if the child is only accidentally sleep on their stomachs, it is best to adjust the baby to a normal sleep posture after 10 to 15 minutes, under the supervision of parents, appropriate. Most newborns are used to lying on their backs because they have just left their mother’s environment, and they sleep more soundly. But too long, will cause cervical spine overburden, so you can be in the case of parental supervision, appropriate lying down to sleep, with the increase in age, lying down to sleep time can be moderately prolonged, 1 year old children, lying down to sleep time can be extended to 0.5 ~ 1 hour. Therefore, in order to ensure the normal developmental state of the spine of newborns, while reducing the risk of abdominal distension, choking, suffocation, etc., it is not recommended to sleep on their stomachs for a long time, and it is recommended to adjust the sleeping position under the supervision of parents every 10 to 15 minutes. Specifically consult a medical professional for advice.