Sooo Sleepy!!!

I don't know why I've been so sleepy lately! I know sleeping is one of my favorite things to do... but this is too much even for me! Am I sleep deprived? Well all i can say is I haven't changed any of my sleeping habits. I am still a "night owl" but I still still sleep at the same hour every night. I don't know if i'm going down with the flu or something because I don't feel any different... I'm JUST A LOT SLEEPY LATELY!!!