12 hours sleep!

Yesterday, after studying, I could not keep my eyes open at 4pm. So I took a nap, then I woke up at 6pm, I was dead tired. I woke up again at 8pm, I went back to bed. I woke up at 11:30pm wide awake. I forced myself to go back to bed. I finally got up at 4am, 12 hours later. What? 12 hours. crazy.
It is 5am after doing my devotions and the such. I am downstairs emailing and studying. I will go for a run, get breakfast and head to the airport.