Answer:
I sleep by day, I fly by night. I have no feathers to aid my flight. What am I?
I am rarely touched but often held. If you are smart you'll use me well. What am I?
It flies around all day but never goes anywhere? What is it?
you need thousands of me to create a digital image.
Deep, deep, do they go. Spreading out as they go. Never needing any air. They are sometimes as fine as hair.
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.