Is there a name for dreamlike thoughts that happen before a dream?
Over the years I've occasionally become (barely) aware of a phase of involuntary mind-wandering that occurs just as consciousness is lost on the onset of sleep. I wonder if there's a technical name for it. I've informally just called it the “predream state” since it seems very similar to dreaming, the only difference being that the scenarios playing in my thoughts are still internal, rather than appearing “for real” through my senses like full dreams do. But they wander and behave in seemingly random ways just as dreams do, and I tend to mentally react identically as if they were actual non-lucid dreams (i.e., happening “for real”). In rare cases, I've even experienced actual transitions from these thoughts to “proper” dreams, where images I'm thinking about smoothly transition so that I'm seeing them for real in a dream. Anyone happen to know what I'm talking about?