My baby is 8 days old and due to bf issues at the start is now used to taking expressed and formula via a bottle. We are now bf well but have continued to give formula at her 11pm and a top up after bf at 2am feed as she is never satisfied at these times with just breast even if she’s on for over an hour. Has anyone else used this method? Am I making a mistake and being selfish as it gets me a few hours sleep!