Do You Have a Hallucination During Sleep?

It's a abnormal sensory perception during sleep in which a person experiences hallucinations that are loud and short duration when either falling asleep or waking up. The noise can be frightening and loud or maybe a boom, it can even experience perhaps a flash of light, no pain associated with it though. Have you guys ever had anything like that happen to you? No. I've never had that. I think my worst might be upon waking. But sometimes I wake up with a start. That has happened to me. Sure. Did I miss my meeting? Right, yeah, something like that. There was some deadline. And you're like, no, it's only six a.m., It's