Most of the dreams I can remember are the ones in the morning after I first stir a bit, when I am still mostly asleep but I am not really in deep sleep. Sometimes when I have morning wood, and I start to stir, I pull my wood into the Fowfer position, in sort of a half heated attempt at PE. That is a habit I picked up back when I was PEing on a regular schedule. Anyhow, after positioning my wood, I would go back to sleep. This causes sort of a “plumping” of my penis, and I have had dreams of having a huge penis after doing this. I think that I created a habit that causes me to have PE on my mind even when I am mostly unconscious.