The Night the Pasikdhar Sat on My Chest

This is my childhood story... I woke suddenly frozen and felt crushing pressure on my chest, like an invisible grip. Panicked, I managed to mumble a prayer. In the dim light I saw a grinning old man hovering by the bed. When I finally moved, there were bruises on my shoulders. My grandmother later said it sounded like the pasikdhar, a sleep-demon known to sit on you. Anyone faced same thing?