You're alone and sleeping on your own bed at midnight. You're just relaxing, feeling comfortable and currently interacting with your nice dream.

All of a sudden, you've just woken up from something moving at the bottom of your bed.

A naked grandmother skeleton. A body full of visible fresh bones and her curly white hair, crawling onto your bed slowly. Her very visible skull approaching within the inches of your eyes, while you're unable to move at all.

... Now, that's just creepy.