I was going to post the same thing!
It takes me ages to fall asleep, then i get up 3 times for a wee, then normally lie there wide awake in the middle of the night. Didn't get back to sleep until 6.30 this morning, so feel awful today. Plus i think i'm coming down with a cold, so really feeling sorry for myself!!
I just find my mind starts to wonder at night, and i just think about peanut, my scans, will my cervix shorten?, will it all go as planned, yadda yadda yadda.....i drive myself mad!!