I'm slightly 
of anyone who has made a successful transition to nursery. The 4mo sleep regression has kicked in majorly here. He's slept fine until we have come to bed and then he's writhed and grunted and cried for most of the rest of the night until dh has got up at 4ish and put him downstairs in his bouncy chair where he's slept like a log.
I think part of the problem is the reflux because we sit up with him for half hour or so after a feed so he's got used to sleeping on me and then being put down asleep.
However last night we wondered if he would sleep better in his own room. We need him to sleep because we're staying at my mother in laws' and somebody else's house is not the place to have an infant screaming all night.
Oh boy. Bad idea. He wouldn't to to bed at all so we brought him downstairs and put him in his chair. Usually we ignore him and he goes to sleep but nana couldn't leave him alone so he didn't sleep.
We went to bed eventually and put him in his cot asleep. He lasted 46 minutes. I took him downstairs. He howled in his bouncy chair. And in his pushchair. Eventually I gave up and took him to watch telly. He tell asleep to the opening credits or holby city. At the end I took him to bed still asleep and he was awake and screaming before I'd left the room. We went back downstairs and he slept happily in my arms through 2 episodes of call the midwife. Given it was 4am I decided a shift change was in order so we went back upstairs; I fed him, kicked DH out of bed and apparently the ratbag slept happily in his chair from 4 to 7.30.
I really, really hope that tonight is better.
Tomorrow we go home so at least tomorrow night comes with less stress and the ability to do pupd or controlled crying as necessary. Just tonight to worry about then...!