Replying to Sleep Scare

One morning recently I woke up and I saw my arm on my chest. When I tried to move it, it didn't budge. For a second I had no idea whose hand it was. So I jumped out of bed and tried to move it and it still wouldn't move. I was flailing it around and I couldn't feel a damn thing. It was way too early to take and crap like that, so I was thinking it had to be amputated or something. Feeling came back some 30 seconds later. Anyone else had the shit scared out of them with this?