Hypersomnia is a disorder of the nervous system where there is an overproduction of a molecule that acts like a sleeping pill and promotes sleep. People with this disorder are tired during the day despite having slept more than 10 hours at night. This usually starts in mid-to-late teens or early twenties and can possibly intensify as they get older. It is caused by sleep disorders, sleep apnea, being overweight, drug or alcohol abuse, head injuries, genetics or depression. Multiple alarm clocks and morning routines are needed to ensure they are awake for the day to make it where they need to be. They often nap, usually for hours, during the day but find it unrefreshing. Symptoms include difficulty awakening from sleep, feelings of grogginess
