Hacker News Reader

Not books, but I recommend Huberman Lab podcast on YT (at least two episodes on sleep) and https://themattwalkerpodcast.buzzsprout.com/

I second Huberman Lab podcast. He has now a monthly newsletter too, and September’s was about sleep. You can read it here:

Thanks for the second suggestion, I’ll have a look.

I third Huberman Lab podcast - he has a lot of great content. His recent one about ADHD was really interesting!