So I have the occasional experience with hallucinations when sleeping. I usually wake up after a bit, and see small things that look like some bug in my room.
It's getting to feel more real each time a hallucination comes up after the last one. At first, I didn't really know I was awake and it was kind of like half-half between being conscious and unconscious. But the last one, which was yesterday, I clearly reaffirmed with myself that I was awake. Right after waking up, I could see it crawling on my ceiling, so I pinched myself and it did hurt, and it was still there. I got up and went to the light, looked before I flipped the switch, still there.
Only after I had flipped the switch did the shadow/hallucination finally go away. I don't take any substances. Just went back to sleep though.
What's up with that?