Patients with heart failure cannot sleep flat on their backs at night; they can sleep in a chair. Prompt consultation with cardiovascular medicine or emergency department is recommended. Heart failure patients are mainly due to coronary heart disease, hypertension and other factors induced, in the early stage of the symptoms of exertional dyspnea, mainly in the process of exercise to make back to the heart of the increase in blood flow, resulting in the left atrium of the pressure rise, which will cause or aggravate the symptoms of pulmonary stasis. When lung stasis reaches a certain level, nocturnal telangiectasia may occur, that is, not being able to lie down during sleep, but needing to sit up, which can reduce the symptoms of lung stasis, and can also make the diaphragm lower, lung capacity increase, thus relieving the related discomfort. Therefore, for heart failure patients after the emergence of sitting breathing, usually can sit in a chair to sleep, at the same time, should immediately consult the doctor for treatment. If necessary, furosemide, metoprolol, enalapril, digitalis and other medications should be prescribed. When the above symptoms occur, it is recommended to go to the hospital in time for early and regular treatment.