I told him NO sleep stuff
He hasn’t
Has he stuck to this OP? I would be amazed because assaulting you whilst you are unconscious is his favourite thing and I don't think he will ever give it up.
Men in particular get very fixated on aspects of sex and this is his thing. Rape and assault are his favourite, he loves it, he plans it and even you can sense the build up to it. It gives him such joy. He doesn't enjoy consensual sex nearly as much which is why he doesn't like you to instigate it.
You said he crossed a red line with the last rape. But in reality there is no red line, you know that and he knows that so the assaults will continue and you will continue to have nightmares and hallucinations.
You call that a happy life. If that makes you happy then you two a good match.
But is it worth sacrificing the children's wellbeing. I think that's probably what you should focus on going forward because you are making decisions for them as well as yourself and you should really start putting them first instead of putting what you want first all the time.
I hope you can eventually come to see how damaging this toxic household is for them and make that change sooner rather than later, for their sake.
One thing is certain. You can't say that you didn't know any more. You can't claim that you thought this was normal or that you weren't aware that his actions are abusive because you've been told by all the contributors to you threads, by womens aid and by your therapist.
So the decisions you make now are not in ignorance, they are with the full knowledge of what you are choosing.