Children coughing for a while in the middle of the night every day may be due to allergic factors, gastroesophageal reflux, cough variant asthma and other factors. 1. Allergic factors: some children may belong to the allergic body, in the middle of the night, may inhale dust mites, thus producing allergic cough symptoms. 2. Gastroesophageal reflux (GERD): Most of the time, GERD occurs in children, mainly due to excessive dietary intake or indigestion, which can cause gastric contents to reflux into the throat, producing irritating cough symptoms. 3. Cough variant asthma: small children cough in the middle of the night every day, not to exclude is due to cough variant asthma, mainly manifested as irritating dry cough, especially in the night and early morning cough is more obvious, in the inhalation of cold air, dust, fumes and so on triggered. Children coughing in the middle of the night every day, there may be other reasons, so it is necessary to go with the doctor to do further examination.