Ask HN: Have you dreamed about your hack/project/business?

While I been working on my recent Hashtag for Email app, I definitely been dreaming about listening to important insights about designs and user experience.

And also literally dreaming about having a few users on my app. Coming up with design and technology decisions in my sleep, the more I research, the more I read and learn.

Not fantasy of making money, but imaginary of technology, and problem solving.

Just wondering if thats normal for all entrepreneurs?