When we took the Sleep Survey in class, I found that many of my answers to the questions were "true". I had 8 total trues, while only 3 meant that you were sleep deprived. This confused me because I felt like I got a lot of sleep at night. I would stay up late, until about one or two in the morning, but I could sleep until two in the afternoon if I wanted to. I would also take hour long naps throughout the day. How could I be sleep deprived if I was sleeping so much?
After doing some research, I found that oversleeping is actually a health disorder called hypersomnia. Hypersomnia causes people to suffer from extreme sleepiness throughout the day, which is not usually relieved by napping. It also causes them to sleep for unusually long periods of time at night. Many people with hypersomnia experience symptoms of anxiety, low energy, and memory problems as a result of their almost constant need for sleep. It can also lead to more serious health issues such as diabetes, obesity, headaches, back pain, depression, heart disease, and even death.
However, not everyone that oversleeps has these problems. The recommended amount of sleep for the average person is 7-8 hours a night. Experts recommend keeping the same bedtimes and wake times every day. They also recommend avoiding caffeine and alcohol close to bedtime. Exercising regularly and making your bedroom a comfortable environment that's conducive to sleep will help you get the amount of sleep you need.
http://www.webmd.com/sleep-disorders/guide/physical-side-effects-oversleeping

Do you think this is true for you, that you get too much sleep? Do some of the symptoms of hypersomnia apply to you? Interesting take on the opposite side of sleep deprivation...To much sleep can cause just as much harm as too little?