Sleeping heart discomfort is always suffocated awake mostly due to cardiovascular diseases, such as: angina pectoris, coronary heart disease, acute myocardial infarction, cardiac insufficiency, heart failure and other diseases, and mental factors can also be caused. First, it may be due to angina pectoris, coronary heart disease, acute myocardial infarction and other diseases, will lead to cardiac blood vessel stenosis, spasm and occlusion, and then manifested in the anterior region of the heart persistent pain and other discomforts, and when there is a symptom of waking up at night, it means that the condition is more serious. Secondly, it may be caused by acute or chronic cardiac insufficiency, heart failure and other diseases, which can pose a serious threat to the patient’s life safety. Also when diseases such as pulmonary embolism and aortic coarctation progress to affect the heart, there can be painful discomfort in the location of the heart. When cardiopulmonary diseases are ruled out, long-term mental effects, depression, anxiety and other factors leading to mental overstress may also cause discomfort. It is recommended to consult a doctor in time to clarify the cause of the disease and carry out targeted treatment.