I can't sleep

Its 3:30am and I've been up for the better part of 90 minutes now.  I'd like to blame it on those stupid birds that are signing and squawking outside my windows (I thought birds were diurnal?) but I think that was just what woke me up.  I think that I cant sleep now for all the stuff rattling around in my head.  From what to pack when we go to Canada, to what to get Josh for his upcoming birthday.  Im thinking about whether I will have a job in another weeks time, and if so, how much work I have ahead of me.  Im thinking of things to add to my "to Do" list- items to add to my grocery shopping list like ketchup and toilet paper, get passports from safety deposit box, book Josh's birthday party, research next career moves, trying not to forget to send a water bottle with jake his field trip tomorrow, I need a way to remember to get my health card back from Norma......and I cant just put it all out of my head and just go to sleep......