The Importance of Sleep - Why Kids Who Sleep Well Are Smart, and Why You Need Good Sleep Even as You Get Older

No matter your age, getting good sleep is crucial.

While you sleep, your brain transfers short-term memories to long-term storage,
Clears the short-term memory to be used the next day,
Brings up long-term memories while you dream, allowing your memories to evolve,
Cleanses harmful substances accumulated in the brain, helping prevent Alzheimer's,
And generates a large number of immune cells, strengthening your immune system.

Memories are not just for the past, but for the future.

The brain is a future prediction machine, and it uses tools like Markov blankets, Bayesian inference, and the Free Energy Principle in its mathematical models - tools that current AI systems are using a lot.