Maybe its your diet. You been eating lots of high energy stuff? I always wake up early if I've been eating toffee before sleeping

I tend to wake up before my alarm if I set it and the next day is rather important... Does today have any significance for you?

I used to do it, and I miss it--it's cause of all my health issues I think that I've been sleeping a lot...but I think it depends on a lot of things for you. Working out? Stress? Maybe you actually don't need that much sleep compared to a lot of people.

But be careful so you don't get sick from it and stuff. It's good to have a steady sleeping rhythm, but make sure you have a day or so out of the week that you can get around 8-10 hours of sleep.

*feels like a doctor*

Maybe its your brain afraid of the alarm clock, like mine. I would always wake up five minutes before the alarm rings. Without the alarm, I would sleep until exactly 9:30.