Blaire's Magical Manual
This actually is one of my favorite abilities. It basically put things to sleep. Creatures usually wake up when they are hurt or when someone actively rouse them. I usually use this to disable strong enemies or to easily damage foes.
"A witch can cause a creature within 30 feet to fall into a deep, magical sleep, as per the spell sleep. The creature receives a Will save to negate the effect. If the save fails, the creature falls asleep for a number of rounds equal to the witch’s level."