The sleep time of newborns varies from individual to individual, and generally the cumulative sleep time of a day is 18-22 hours. Because newborns are primarily sleepers, they sleep the rest of the time except for the usual time when they eat milk or open their eyes to see the outside world. As the baby grows and develops, the sleep time will gradually shorten. Generally after 3 months baby’s sleep time will be shortened to about 16-18 hours, usually with more daytime activities. The nighttime sleep time is long, while the daytime sleep time is gradually shortened. As newborns sleep for longer periods of time, it is very important that the baby sleeps comfortably as well as in the sleeping position. There are three positions in which newborns sleep, namely supine, lateral, and prone. The three sleeping positions have their advantages and disadvantages, it is best to sleep mainly in the supine and lateral sleeping position to alternate, not fixed a sleeping position every day. If you take the prone sleeping position, parents must always observe the baby’s situation to avoid accidental suffocation. The newborn’s body and face are relaxed during normal sleep, with little activity except for occasional subtle movements, eyes usually tightly closed, and breathing evenly. Parents need to dim the light and keep the room quiet so that it can rest adequately. If the baby is not awake by the time it is time to feed or urinate, do not rush to pat the baby awake, just wait until he or she wakes up naturally.