I love his book "Why we sleep" and I think most people today should read it.
People take pride in sleeping less than they should which is pretty fucked up in my opinion.
DHH also have a lot to say about it:
https://m.signalvnoise.com/sleep-deprivation-is-not-a-badge-...
https://medium.com/signal-v-noise/microsoft-reboots-war-on-s...