Why do we have to sleep at night?

After a full night of sleep, you wake up ready for a new day of school, fun activities and family time. You use a lot of energy to go to school, play outside at recess, do your homework, go to piano lessons and eat dinner with your family and by the end of the day your body becomes driven to sleep. You are like a car, with your gas tank full in the morning, and empty by the end of the day. Just like your parents have to go to the gas station, you fill up your own "gas tank" while you sleep. A full tank gives you enough energy to stay busy and do your best the next day.

We have to sleep due to the fact that our brains work better when we rest peaceful unless u have nightmares oh and because the human brain just feels lazy after a long school day or week or long work day or week! : - )