Answer:
The time between daylight and darkness when blood drinkers like to come out
What goes up and down but does not move?
The more you have me, the less you see. Shine a light on me and I flee. What am I?
I am commonly ate before I'm born and after I'm dead.
I cannot be bought cannot be sold even if Iām sometimes made of gold.
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.