Answer:
I weaken all men for hours each day. I show you strange visions while you are away. I take you by night, by day take you back. None suffer to have me, but do from my lack.
Snow White was friendly with seven of them
Taking this from a baby is said to be quite easy.
This royal young lady had several short men following her and helping her in the forest!
There are two monkeys on a tree and one jumps off. Why does the other monkey jump too?
I can only be played on a windy day