Sleeping is one of your favourite things to do in the world, and you need to do a lot of it.
But sadly the world is not designed for people like you.
Andrea Hickey / BuzzFeed
The scientists need to run their tests again: Eight hours’ sleep isn’t enough. You need at least nine hours to be a happily functioning human.
If you don’t enough get sleep, bad things happen.
Becky Barnicoat / BuzzFeed