sleep? what's that?

I am sooooooooooooooooo tired that i can't go to sleep. don't you hate that?? i am completely on the verge of exhaustion and as soon as i lay down i think of something i need to do so i get up and go do it. i have barely slept this week (though i had good intentions of sleeping) and it has totally caught up with me. i have to go to a silly reception friday night and i totally don't want to go. i haven't found a way to get out of it though. i have Monty Python songs going through my head right now. quite annoying when i want to sleep.