A day of rest of only 2 hours can last for a few days depending on the patient’s physical condition, those with good physical condition can last for more than 20 days, while those with weak physical condition can last for only 2-3 days. Sleep has a vital role in the body, allowing the body systems to get sufficient rest, normal adults need 7-8 hours of sleep a day to ensure a normal state of work and study. If the patient is in the state of less sleep for a long time, the body systems will be overloaded, which will lead to various dysfunctions, and the patient will be in a long-term subhealth state. Patients with a good physical condition can sleep 2 hours a day for more than 20 days, but it can also lead to damage to the organism, and some patients can only last 2-3 days. In short, long-term sleep deprivation is one of the factors affecting various chronic diseases, such as cardiovascular disease, diabetes, etc., and in serious cases may also lead to viral myocarditis, sudden death.