I don't know ( sighing emoticon) - this is all a bit odd tbh.
I can see that for some couples, sleepy sex in the morning is fine- no big deal.
What are you mad about? The fact that he didn't ask you 1st, for either "usual" sex or anal sex,- or the fact that it was anal?
If it is the latter, has he done that before- when you were consenting?
If it was the former, well, I can see that some men might quite innocently, try it on, in the morning, and hope their DPs would respond.
Without reading all your posts again, I cannot remember whether you pushed him off straight away, when you woke up, or if he had been at it for some time before you woke.
I think only you know whether he has crossed some kind of line, having sex ( or anal sex) with you against your will and without consent, or if this was just "horse play" that went a bit wrong.
Is anal sex something he wants but doesn't get? I still find it hard to understand how he could lose his sense of direcion so easily, as anal sex is supposedly quite tricky without lubrication and he could well ahev hurt himself in the process! was he acting out a fantasy of some kind and taking advantage of you being comatose?
No real advice- either it IS a big deal for you or it's not. The rest of your relationship doesn't sound too good anyway.