I really hope they aren't. The Draco in my dreams is not who I want to be, he's not even someone I would want to be associated with. I'd rather not believe there's any part of me that is like him.
I mean maybe they could be some sort of warning. Not to make the mistakes our dream selves do? I don't know. Who knows why we have them? Who knows why some people are completely different and others are not.
We all get out of sorts thanks to these bloody dreams.