My 11wk old DS has been waking up around 3am for the past 2 weeks, before this it was 10pm - 5am most nights. My husband has suggested a bottle of formula to help her sleep through. I did express and gave her a bottle a couple of nights ago and she did 9pm - 4am but it took 3 days to express! Getting up doesn't bother me but obviously it's tiring and wakes hubby up sometimes. Do BF babies sleep through? I dont want to give up and use a bottle - but IS this giving up???? Very confused!