I really feel for you. You are working so hard to move things back to where they were and I understand that because your recent experiences with him have been painful. It sounds like you are having to fill in a lot of gaps in the absence of his transparent discussion with you - you are imagining his reasons for falling asleep, creating his reasons for not addressing this directly, giving him a pass for not addressing the issues directly, and so on. I think that in that process of "filling in", there will be a lot of your transferential and projection material happening. It seems like such a wasted opportunity that you can't work through that with him because he is not brave enough to address the events.

I don't want to piss on your parade and I am pleased that you feel things are back on track. This kind of repair wouldn't cut it for me. In my therapy, I know that significant ruptures have only been able to be repaired by my therapist allowing her humility into the room and talking directly at the issue rather than dodging. It sounds like he is keen to assert his boundaries with you, I wonder how keen he is discuss and respect your boundaries - like him staying awake during sessions. This is a really hard place for you to be in.