The baby woke up coughing to fall asleep without coughing may be living habits, may also be the emergence of allergic cough or acute bronchitis and other diseases. 1. living habits, usually if the baby to drink less water, or often in too dry environment, there may be a waking cough sleeping without coughing symptoms. 2. Allergic cough, if there is an allergic cough, waking up when the attention is more focused, so there may be a baby waking up cough sleeping without coughing symptoms. 3. Acute bronchitis, clinically acute bronchitis due to the trachea area congestion, edema, waking up when the body sensitivity increases, so this symptom may occur. If repeated coughing, it is best to take the baby to the doctor in time for examination and treatment.