So I learned some stuff about dreams. Basically your brain starts talking to itself while trying to record your memories, resulting in some very confusing stuff we try to make sense of that you can't remember later because it's never recorded. So in order to maximize the chance of those memories turning into dreams, you'd need to spend most of your day envisioning your comic in your head n stuff, and not much else. If you can't remember your dreams, try setting an alarm to wake yourself up towards the end of your sleep cycle and go immediately back to sleep, you'll have a better chance of both screwing with your brain and remembering it. If it's still hard to remember, sit in your bed as soon as you wake up and try to remember it before getting out. Eventually you get better at remembering things in the short-term.
Also, be sure to watch some messed up movies in-between comic time and see what your sleep brain makes of it. :Y