Sometimes sleeping 12 hours, especially after a period of intense exercise or lack of sleep, might not be bad and could just mean that your body needs to recover. However, sleeping 12 hours or more every night could be a sign of deeper problems. Chronic oversleeping has been linked to a number of health problems, such as sadness, memory loss, obesity, heart disease, and more inflammat... https://www.medzsquare.com/au/modalert-200