Sudden palpitations while falling asleep are usually caused by excessive stress, heart failure, insufficient blood supply to the heart muscle, etc. They can be treated with spironolactone tablets, furosemide tablets, digoxin tablets and other medications as prescribed by the doctor. 1. Excessive stress: long-term stress or emotional tension can lead to decreased sleep quality, resulting in autonomic nervous system regulation disorders, manifested as palpitations, panic and other symptoms. Generally do not need special treatment, usually pay attention to maintain a happy mood, emotional relief, avoid excessive stress. 2. Heart failure: If the patient suffers from heart failure, the increase in the amount of back to the heart when sleeping will lead to the increase in the patient’s heart load, resulting in symptoms of palpitations, accompanied by dyspnea, coughing and so on. At this time, patients can take spironolactone tablets, furosemide tablets, digoxin tablets and other drugs under the guidance of the doctor to treat, spironolactone tablets, furosemide tablets belong to diuretics, patients can take to relieve the edema caused by heart failure, and digoxin tablets belong to the digitalis class of cardiotonic drugs, take to enhance myocardial contraction, increase the volume of cardiac excretion, so as to alleviate the symptoms of heart failure. 3. Insufficient myocardial blood supply: Insufficient myocardial blood supply will lead to ischemia and hypoxia of the patient’s heart, thus causing palpitations, panic and other symptoms, the patient at this time can comply with the doctor’s instructions to take nitroglycerin tablets, isosorbide mononitrate delayed-release tablets, bisabolol fumarate tablets and other drugs, which can control the heart rate, and improve the myocardial ischemia and hypoxia of the symptoms. It is recommended to consult a doctor in time for relevant examination, according to the specific situation, under the guidance of the doctor, symptomatic treatment.