Dee,

I've been reading the book "the Wonder Weeks' about the big developmental 'leaps' a baby goes through, and one of which is at around 3 months of age. This is the time when their brain develops at such a huge rate, and in the following weeks, he going to go from being a newborn to a baby who will learn to use his hands, recognise faces, roll and giggle. Just in a few weeks! But the downside to that is that this brain development also causes them to become unsettled, clingy and sleep less.

I am pretty sure that his wakefulness has little to do with BFing, and I suspect that introducing him to a bottle now causing even more unsettling 'change' in his life. Talk to anyone with a 3 month old and they'll tell you their baby has been extra fussy lately, in varying degrees. It'll happen on and off for the first year of their life, them sleeping soundly for 10 hours, then the next night waking every hour! But if you can get your hands on it, 'The Wonder Weeks' makes so much sense of these things, and it'll help you to see through the fussy periods knowing what it is that's going on in your baby's little body that's making him behave that way.

Good luck hunny, from a fellow mum who woke up to her baby 4 times last night!