How to optimize sleep

This episode is really for you people, who don't have any issue sleeping, per se, but who just want to know more about it and who may want to optimize their sleep. It's more about sleep performance, rather than getting any sleep at all.  I will explain the following three things: 1) sleep phases 2) how to optimize your sleep (including purposeful sleep deprivation, which is a technique that I'm going to talk about) 3) what I would do!