All the health experts I listen to, talk about Matthew Walker as a true sleep guru. I think everyone should watch when Matthew Walker guests JRE.
https://www.jrepodcast.com/episode/joe-rogan-experience-1109-matthew-walker/
It’s odd that we are designed for sleep to have such great significance. It’s strange that we are programmed to sleep in a world where animals constantly hunt to kill, or run to escape, fight to survive. It is however one of the most important aspects of health. I could write it all down here, but seriously, listen to Matthew’s JRE episode.
You can find his podcasts, newsletters, books on his website,
https://www.sleepdiplomat.com/