Is anyone else gone through the same thing, or give me any more ideas of what to try. I'm currently 3 weeks away from giving birth and there are a few changes going on in the house in getting ready for new baby. My son had a new big boys bed before Xmas and he has done so well in sleeping in it. However the last week he has been waking up in the middle of the night. I say for no reason but something is worrying him. If I get him back to sleep he wakes up a hour later. I have tried to put him to sleep later but that does not make a difference. I go into his room and sit in his chair as I don't want to start bringing him into our bed! Any ideas welcome! So tired 
and would like to get him back to sleeping like he has had before baby arrives!