Newborns sleep on their backs to help lung development, but if sleeping on their backs for more than 2 hours, parents are advised to change the sleeping position for their babies to avoid pressure on local tissues. As just recently removed from the mother, so many newborns like to sleep on their stomachs, like still in the mother’s tummy, you can get a sense of security, sleep more solid, but also for the development of respiratory system maturity also has a certain role in promoting. Parents should pay attention to when the baby sleeps on his back, the head can not have debris around, such as quilts and pillows, to avoid blocking the baby’s mouth and nose caused by suffocation. Newborns sleep on their backs for about 2 hours, parents are advised to replace the newborn with a side-lying or supine position to sleep, so as not to sleep on their backs for a long time to compress the cheeks, resulting in bilateral cheek development asymmetry. In addition, newborns are not recommended to sleep on their stomachs immediately after eating, easy to compress the stomach, causing the baby to vomit, but also not conducive to food digestion.