I get it a couple times a year, I think. I don't always remember if I'm not prompted to. I'm really lucky that I've never hallucinated during it, but I have had a general feeling of dread. There was one time I was convinced I had rolled over on top of my cat and I was suffocating her and I couldn't move to free her. Most of the time it's been more disorienting than scary and I end up feeling unrested. I'm so grateful I've never had it worse than that.