My ex-husband used to get SP and it would terrify him. He'd make uh-uh-uh-uh noises but not be moving. When I talked to him about it he asked me to jostle him awake, which I started doing, and for which he was grateful. Later when I found out about SP associated with OBE, I reported to him that he was going the wrong way, wanting to wake up, but he was not interested in trying to exit.
I don't remember ever having SP, although I've had vibrations a few times. When they are intense you really do feel like you're being electrocuted, up and down and up and down!