Tired

I'm really tired this morning. I don't really know why though. I got my recommended 7 seven hours of sleep and I'm still tired. I find that when I don't get enough sleep i'm definitely tired, but it never seems like I can never get enough. All the work this week and next week has made it a pretty stressful semester so far. I am doing aright in all my classes, but I am putting more time and effort into my classes then ever before. I need a break.....