Frequent night waking of one-year-old babies may be caused by physiological factors such as overdressed clothes and environment, or it may be caused by colds, diseases such as vitamin D deficiency rickets, and other diseases such as gastroenteritis. 1. Physiological factors: if the baby is sleeping, parents give the baby wearing too much clothing, will lead to the baby in the night frequently woke up by the heat. It is also possible that the temperature of the baby’s sleeping environment is uncomfortable, and the baby will also wake up frequently at night when he feels hot or cold. 2. Colds: Colds are commonly caused by viral, bacterial and other pathogenic infections, and children mainly show fever, cough, nasal congestion and so on. In addition, children with colds will also experience symptoms such as sore throat and pharyngitis, which can lead to frequent night wakings in one-year-old babies. 3. Vitamin D deficiency rickets: Vitamin D deficiency rickets is mainly caused by vitamin D deficiency, the main symptoms of children with excessive sweating, easy to alarm, irritability, etc., which can also lead to one-year-old baby has frequent night waking performance. 4. Other: gastroenteritis, functional dyspepsia and other diseases can also lead to one year old babies have frequent night waking phenomenon. One year old baby frequent night waking, there may be other reasons, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.