Scarlett,
My feet hanging off of the end of the bed when I'm trying to go to sleep, the jerking, stomach-swooping jolt you sometimes get when you're drifting off to sleep, the one that feels like you've floated off of the bed and suddenly fallen back down (I hope I'm not the only one that gets that!),the half-dream state when you're able to see your surroundings but you can't move or make a sound and it's hard to distinguish between reality and dreaming, everything just kind of melds together (I think it's called sleep paralysis?),meat hooks(don't ask me why, they're just creepy),and being trapped in a small enclosed space that's filling with water(car, submarine, cave).
Those are some of the things that scare me.....