*WHY is it beneficial to sleep during the day?* The point is that sleeping during the day prevents "burnout". It restores the body, reduces stress, and gives you the opportunity to rethink the situation. Also daytime sleep reduces the risk of cardiovascular disease. Those who sleep in the afternoon at least 3 times a week, reduce the risk of heart disease by 40%. Scientists claim that daytime sleep is a powerful weapon against myocardial infarction.