The causes of children waking up from sleep coughing are allergic factors, respiratory infectious diseases, etc.. 1. Allergic factors: the indoor environment is not suitable for temperature and humidity, the temperature is low in the morning and the air is dry, it is easy to have allergic cough symptoms. Children are allergic to dust mites and cotton wool on bed sheets and bedding, which can cause them to wake up coughing. 2. Infectious diseases of the respiratory tract: such as bronchitis, pharyngolaryngitis, tonsillitis, etc., inflammatory stimulation and phlegm stimulation will cause cough symptoms. Children wake up coughing, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.