I ALWAYS fed Olivia to sleep, from birth till about 6 months, then offered her a top of from a bottle from 6 months to about 18 months, and it hasn't been "habit forming".....she is still a tiny wee thing, and now at 2 and a half happily goes off for her day sleep and her night time sleep without any feeding.....so she and I both "grew out of it".

Charlie was also always fed to sleep on the boob, and I still offer a top up with a bottle before his day and night sleeps.......sometimes he wants it, other times he doesn't. It is a nice cuddly way for us to get in the mood for a snooze, and I see nothing wrong with that.......