DS (nearly 15 months) has always been rubbish at sleeping but last week we started what we thought was a 'kind' method of sleep training (going in and comforting then leaving him for no more than a minute, rinse, lather, repeat). It was working really well and he was getting himself back to sleep within about 10 or 15 minutes each time. But this evening he has been waking and screaming every half hour or so - we found that he had a very sore bot, so I guess he's in pain with that. So what do I do now? I obviously can't leave him to cry if he's in pain - do I do whatever I can to get him to sleep, whether that's rocking him, letting him sleep in with me etc. and then 're-train' him when he's better? But it'd be so annoying to undo the good work we did all last week by letting him sleep in with us again. So what do you do when this sort of thing happens? How do you comfort them whilst still trying to train them?