I am an idiot

Why on earth did I agree to take an extra shift today? Because I am a complete idiot! Went to bed last night at midnight, got a call to reset the fax servers at 2:30am, got back to bed by 3 but didnt fall asleep right away. Woke up at 6 and got to work by 7. I had planned on getting home from work at 3 and having a nap but hubby had to work so all I got was a 20 min. power nap before leaving for work at 11. Here I sit, it's 3am, and my eyes are sticking together. I dont think I can make it til 7am. Need. coffee. now. I just discovered that typing does not keep me awake. Oh well, time to put my head down on my desk and see what happens.