If there's genuine mutual consent, I'd say it's okay, but Daddydick is giving mixed messages about wherther or not his wife is okay with this.
I've woken up several times to find my (previous) girl-friend giving me a b/j in my sleep. Each time I was already hard and close to cumming. Generally, I thoroughly enjoyed it. But one night it was clear that she intended this as a foreplay to full-on fucking, when all I wanted to do was catch up on some much-needed sleep. I wasn't going along with it and must have been pretty grumpy 'cos she never did it again! Yes, much as I love sex, this was intrusive and, at the time, unwanted!