My 6 month old ds isnt a great sleeper, and after Christmas I am thinking about trying a settle and leave type approach. Obviously, I would do this when he is happy and well. However, being a baby, he has frequent colds etc and I am wondering how people deal with this once sleep training has been initiated? Do people switch back to responding immediately every time an ill baby wakes? Once they are well again, do you then have to go back to the beginning with the settle and leave approach? Advice appreciated