My first didn't sleep thru until 15 weeks, it's funny you count down to this milestone of sleeping thru and it lasts all of 3 months or so until teething and crawling and walking kicks in which makes them wake in the night again, not to feed but scream and stuff like that! At 6 months you need a routine, before that I think each baby finds there own pattern. Fearne is nothing like Corey in terms of feeding and sleeping! X