I've been reading all the posts about controlled crying etc. here and am a bit confused about it. I've read Richard Ferber as my 18 month old dd is having some sleep problems. I've been trying out cc but so far it doesn't seem to be working. Then I just read the interview with Gina Ford on this website and she says if it doesn't work after a couple of weeks it's not going to. Does anyone have any experience of this?