Newborns wake up once an hour, may be caused by environmental factors, may also be caused by pathological factors, should be combined with specific circumstances to determine whether normal. In general, the newborn sleep time is relatively long, usually sleep three or four hours will not wake up, if an hour to wake up once, but the baby’s mental state is good, there is no other discomforts, is normal, if the state is not good is not normal, the newborn wakes up more frequently, parents should pay attention. Newborns waking up once an hour may be due to the environment, such as room temperature is too high or too low, noisy surroundings, etc., so pay attention to adjust the baby’s sleep environment, so as not to affect the baby sleep. Babies waking up frequently may also be caused by calcium deficiency, abdominal pain, etc. It is recommended to go to the hospital in time for examination and treatment under the guidance of doctors, etc.