As someone who has taken sleeping pills for years to address a sleep disorder, I had been thrilled the past few weeks that I developed the ability to close my eyes and fall asleep at will. That seems to have changed in the past couple of day - I've woken up after 1:00 am and thus far, have found it impossible to get back to sleep. I had hoped last night that I would have been so exhausted from the previous night that it wasn't going to be a problem again...but I was wrong! I was bright-eyed and bushy-tailed all night long.
I read somewhere that this was the body's way of preparing for the lack of sleep that a baby brings. I'd rather get as much sleep now as I can!