How could I be this tired?

True, I did stay up last night to discuss the collab until quarter to 1am, went to bed at around 2:45am, got up at 7am, started working at 8am, had an absolutely insanely crazy morning and throughout the whole shift, got home at around 4:45pm, cleaned a few files off the hard drive, tried to catch up on the reading.....

...I guess I do have a reason to be tired. Sorry, guys. I simply can't make it tonight. I'll definitely make up the lost time and effort tomorrow!! m(__)m