Sleeping and waking up breathless can be seen in a variety of reasons, common such as hypertension, arrhythmia, asthma, sleep apnea syndrome and so on. 1. High blood pressure: Sleeping and waking up gasping for breath is considered to be caused by high blood pressure, hypertension is a relatively common disease, suffering from high blood pressure is mainly due to unhealthy diet and bad habits, daily life should pay attention to adjusting the pressure of life and work. 2. Arrhythmia: Sleeping and waking up gasping for breath is caused by arrhythmia, especially when the patient’s left heart insufficiency, due to sleeping in a flat bed, the amount of return increased, so that the heart is in a state of overload, there will be gasping for breath, you can sit up and down with both limbs, so that the symptom is alleviated. 3. Asthma: some patients sleep holding awake gasping for breath, there may also be the presence of other symptoms, such as wheezing, shortness of breath, chest tightness, etc., in the cold after the beginning of wheezing, the main manifestation of respiratory symptoms aggravated by dyspnea. 4. Sleep Apnea Syndrome: Patients may experience intermittent pauses in breathing, and may feel panic, chest tightness or discomfort in the precordial area. In addition, cardiac arrhythmia, myocardial ischemia, coronary heart disease and other diseases, can also cause in the sleep appear to hold awake gasping for breath. There may be other reasons for the symptoms of waking up breathless in sleep, it is recommended to go to the hospital in time, usually go to the hospital regularly for a full body checkup, manage the diet in daily life, and maintain a healthy state of life.