I cant remember when callum was sleeping through but I know it was after 6 months. But I was giving him to many feeds as he was only on 150mls so I thought he wasnt getting enough milk. I ketp the same about of mls but dropped a bottle. He ate more and started sleeping through. I do know that they say breast feed babies tend to wake more as its a comfort thing but im not sure that is so. I hope things get better for you but im sure your doing what your meant to do. All babies are different.