Back to Sleep is your superpower by Matt Walker, with Matt Walker.
Why Do We Need Sleep for Our Brain
Your brain needs adequate sleep to absorb, and to retain new memories. Scientist validated these assumptions by comparing a group of sleep deprived students to a group that got 8 hours of sleep before taking a test. The former had a 40% deficit in their ability to make memories. For some children, this could be the difference between getting an A and failing.