as the sun goes down and the shadows grow longer
most of the life outside comes to end. When its dark people and some animals start to settle down for the night. Many wonder why we sleep during the night and not the day. I think its because most things can't see in the dark. If we can't see we are pretty much useless. we wouldn't be able to see our food to eat or see where we're going most of the-time. And we wouldn't be able to see beautiful views and flowers. There would be no need for color or decorations.
we all sleep during the night because when its dark we cant do anything. It would be different if everyone had their own pair of night vision goggles.