I experienced sp the other night for the first time, but it didn’t freak me out. Yeah, I couldn’t move and it was hard to breathe, and some creature was clawing at the side of my bed, but I’d done a TON of research on sp beforehand. I was startled at first from hearing the scratching, but almost instantly I recognized what it was and “accidentally” fell into another lucid. Trippy stuff, man.