I've had a mini sleep paralysis case before.
I had fallen asleep in the bonus room watching a TV show about ghosts, and I had fallen asleep against a beanie bag. Then I wake up all the sudden and right in front of me is the ghost girl from the Ring hiding behind the beanie bag (I had turned myself around in my sleep to face the wall behind the beanie bag) she was crouched down, looking at me like this:
Then rather quickly her face just turned into the most malicious smile ever, and thats when I snapped out of it and sprinted down the hallway to my parents room.
The whole thing lasted only like four seconds.