Has anyone else had hypnogogic hallucinations?

These are hallucinations that occur as you are falling asleep but not all the way asleep. Mine happen almost an hour to the minute from the time I turn the lights out.
I found a blog online but cannot find it again.
Some people say these are why people think they’ve been “alien abduction”. I don’t do that but sometimes get some really frightening ones-like being watched by a hole in the wall or ceiling, and these are getting more clever in the “how’s” they find ways to watch me.
I turn on the light to make them go away. I “know” they are not real, but in the moment it is a different story.