One year old babies wake up frequently at night and can’t sleep soundly, should first clarify the causative factors, and then treat and adjust for the causative factors. Common causes are poor sleep environment, indigestion, vitamin D deficiency rickets, etc., can be improved by improving the sleep environment, adjusting the digestive function, vitamin D supplementation and other ways to improve. 1. Poor sleep environment: If the sleep environment is too hot, too cold, or too much noise and other factors, resulting in a one-year-old baby waking up frequently at night, sleep is not solid. In this case, the main thing is to improve the poor sleep environment, such as appropriate air conditioning, adjust the indoor temperature in the appropriate state, keep the sleep environment quiet, is conducive to improving the above symptoms. 2. Indigestion: If it is due to indigestion leading to abdominal distension, abdominal pain, caused by the one-year-old baby waking up frequently at night, sleep is not solid. You can rub the baby’s abdomen properly and pay attention to keep the abdomen warm. If the symptoms continue to fail to improve, you can use probiotics such as Bacillus subtilis bifidus granules and other drugs to improve digestion. 3. Vitamin D deficiency rickets: If it is due to vitamin D deficiency rickets, resulting in increased nerve excitability, caused by the one-year-old baby waking up frequently at night to sleep. After a clear diagnosis, vitamin D can be supplemented with the appropriate amount of vitamin D, which is conducive to the improvement of the above symptoms. One year old baby waking up frequently at night, should be timely to find triggers, avoid blindly to the child abuse of drugs, need to be guided by the doctor reasonable use of drugs. All of the above drugs should be used under the guidance of a doctor.