There are many reasons for coughing at night, such as cough variant asthma, cardiac insufficiency, gastroesophageal reflux disease and so on. 1. Cough variant asthma: a special type of asthma, mainly manifested as irritating dry cough, mostly at night and early morning episodes, without obvious wheezing, shortness of breath and other symptoms. It can be treated with inhaled glucocorticosteroids (e.g. budesonide) and bronchodilators (e.g. salbutamol) under doctor’s guidance. 2. Cardiac insufficiency: some patients with chronic cardiac insufficiency, lying down at night, there will be an increase in the volume of return blood, increased cardiac load, aggravated pulmonary stasis, causing coughing, accompanied by dyspnea, coughing up pink foamy sputum, you can take the sitting position, the symptom can be alleviated, but it is necessary to consult a doctor in a timely manner. 3. Gastroesophageal Reflux Disease (GERD): When lying down, the acidic reflux material may reflux into the throat, irritating the throat and trachea, causing night cough and pharyngeal discomfort. Omeprazole and domperidone can be used under the guidance of a doctor, thus reducing coughing. There are many reasons why you can’t sleep with a cough at night, you should go to the hospital in time to clarify the cause of the disease and get treatment under the guidance of your doctor to avoid delaying your condition.