Hey guys, thanks for all the feedback!
I was tired that day because I stayed out late with some friends the night before, then woke up early to go to work. I was dehydrated cause once I started hanging out, finishing up my daily requirement of water didn't seem as important. So the next day started like, okay, I have minus water in me.
Since I've been dieting, I notice I am a lighter sleeper (probably cause I'm not in a food coma). I also wake up sharply. *Eyes snap open, WAKE!* And that groggy *Bah, need coffee, yawn, growl* wake-up-foggyness is way smaller. It's more like.... *Bah, yawn, okay.*
I know when I'm super dead on my feet I'll float over to the fridge. I think it's my body trying to help me out, as if I want to stay awake. My body's like "Here ya go! This is what you need! This will keep you up!" I just need to use my mind and say "Thanks anyway body, but I should probably just go bed."