Starlight I would happily consider a later bedtime but I am (a) terrified that he'll wake at 4:30am anyway and (b) I feel bad for making DP do a feed so late. I've spoken to him though, and we've agreed that if things don't improve (i.e. he starts settling quicker or sleeping a longer stretch so i can reasonable start the day), we'll start doing that from thursday night (so he's here on the weekend if it completely mucks up T's body clock).
I think unless things begin to change in the next couple of days it's safe to assume that we're going to have to help him learn that 4am is not party time rather than hoping he'll magically pick it up himself.
The other problem is that quite often he's fairly sleepy at the end of the feed, but he's quite windy, and by the time I've managed to get all the burps out of him he's totally awake and very cross! I did try putting him down without thorough burping, but he was up 3 more times, each time doing a very undignified belch.
ninja thanks for the vote of confidence. Hope you're beginning to improve on the tonsil front. I am clinging on to the fact that when he does sleep he is a very heavy sleeper (we can make quite a lot of noise and he doesn't stir) so once the sleeping probs are sorted he should be a good sleeper!
In other positive news, T went down for his lunchtime nap without a problem today, as well as on friday (this has been our bogey nap for a couple of weeks). It's brilliant that he's going down for it again, as he tends to sleep for a good 90 mins at that one, giving me a decent break.