I completely agree. I fully discounted the value of sleep when I was in school but now professionally I use it in a very similar way.

When I need to learn how to use a new tool, I’ll read through the docs, some tutorial examples and try to find an actual complicated example (which is usually what I actually need to work with) of how it’s used. The first day, I kind of get it in theory but struggle to connect how the tool interacts with everything else. If I get a good night’s sleep I’m usually ready to get my hands dirty the next day with the complicated stuff because my understanding greatly increased overnight