Newborns like to lie on the adult body to sleep is a normal situation, the time is shorter do not have to worry too much, if the time is longer need to correct the newborn sleeping posture. 1. shorter time: when the fetus was born, for the mother outside the environment is relatively unfamiliar, and therefore will develop the habit of sleeping on the adult. If the number of times or a shorter period of time, the general growth and development of the fetus will not have a significant impact, but also to increase the newborn’s sense of security, do not have to worry too much. 2. Longer time: when the newborn sleeps on the adult for a long time, it will have an unfavorable impact on the newborn’s physical development, which may cause scoliosis and other adverse consequences. Therefore, it is necessary to correct the sleeping position of the fetus before the maturation of skeletal development, and try to let the child sleep on the side or on the back. It is important to change the sleeping position regularly to avoid maintaining the same position for a long period of time, which may result in poor bone development. 3. Therefore, newborns like to sleep on adults after birth, is a normal physiological needs, generally do not need to worry too much. If you sleep on your back for a longer period of time, it may increase the risk of abnormal bone development, and you need to pay attention to the parents to correct the sleeping posture in time and avoid maintaining a posture for a long time.