Sleeping through the night?

As of 3 nights ago, Cameron has been sort of sleeping through the night. He goes down at around 7pm. I give me a last feed at 11pm and he will sleep through til 5.30 or 6.30am. When he wakes up at 5.30am, we give him a small feed of 2oz and he can sleep til about 7.30am. But I realise that it screws up the routine. I learnt it the hard way. So I wake him up at 7am to start the day.

But when he wakes up, he is usually not interested in his feed, so I suspect he doesn't really need the 5.30am feed. I will try to pacify him with water instead, and see how we go.