So for the past yr and a half dh has been doing things in his sleep examples:
Threatening to punch me
Elbowed me in the mouth and I got a fat lip
Trying to have sex with me (this is the annoying one as he is 6'7" and 20 of stone so he's massive and it's hard to push him off)
Calling me derogatory names
He has been asleep, completely asleep it's only when I've shouted stop or dh name that he snaps out of it, I've been a bit scared to sleep with him tbh.
He finally went to the Drs after he tried to punch me as by then we knew it wasn't just a phase, dh is very apologetic in the morning and never remembers.
Anyway we have waited over 7 months for an appointment and he finally got one a few weeks ago, they have booked him in for a sleep study for 48 hours next week. Dh has been very moody lately and today has decided he can't attend the sleep study as he has too much work on 
I've said that he has to go as I'm scared of sleeping with him and not to sound too dramatic but I don't partially want to deal with this anymore. He slept on the sofa for a week but says his back hurts so has been sleeping in the bed but I'm scared.
I'm not very happy about him basically saying he's not going to do it, I think he needs to. It's not fair on me.
I want to say that if he doesn't go then he cannot sleep with me until he has done it even if that takes months!
Aibu? This is serious :(