Tired

I'm tired. Very tired in fact. I've been sleeping more, taking naps during the day for up to an hour and it's beginning to worry me. I fell asleep around 730 in the after noon today and woke up an hour later. It's not like me to nap like this. I'm getting plenty of sleep a night, I know I am since I'm going to bed earlier then usual, but I'm still waking up around 9 am like clock work, without an alarm. >.< This wouldn't have me nearly as worried if it weren't for the fact I am so not a morning person. I generally stay up until 2 am and I get up around 10ish or just before 11 am. I'm now seeing 8 am and 9 am like clock work and it's disconcerting to say the least.