We have just returned from holiday which completely messed up DD sleep pattern, by the end of the 2 weeks she was co-sleeping and not going to bed until 11pm (before the holiday she was a 630pm-6am sleeper in her cot). We have been home for 3 days, we have managed to get her to sleep at 630pm but only for an hour or so in her cot, after which she awakes and is VERY awake, this goes on all evening and its been impossible to get her back to bed in her cot, subsequently she has ended up co-sleeping with us again. Anyone else experienced similar? How long did it take your DC to get back into the usual routine?