Hi, my 4.5 month old generally just wakes the once at night (anywhere between 1.30 and 4am) (I know, this is good, I am not complaining about feeding once a night) but when she feeds, she is very active and wriggly and pulls off a lot, takes in loads of air and then is a very devil to wind. Quite often she throws up what seems like the whole lot (mmm, just what you want at that time of night), but will then settle back to sleep til morning fairly easily. Does this mean she doesn't really need the night feed? In fact she did sleep through a few times when she was about 12 weeks, but that seems a long time ago now.