I used to get them a lot in high school due to stress. I haven't had any since then though.

It's honestly one of the scariest experiences of my life. Seeing shadows and hearing whispers, feeling like something is in my room watching me.

And sometimes it would happen when my face was in my pillow and I would think someone was holding me down and trying to suffocate me. One time I distinctly remember floating above myself and I couldn't get back in my body.

I hope it never happens again.