Yeah, I've had these sorts of dreams. Usually trying to solve a problem.

However, when I wake up nothing I drempt about, like my possible solution(s), makes any sense whatsoever. In the dream... it made all the sense.

I've had instances where my mental processing capabilities seem to skyrocket and I can safely and efficiently spawn multiple thought threads in my mind, while the dreamworld around me "slows down" to give the illusion that I'm thinking "faster".

I do like those dreams; I don't mind them; I hardly ever have them.