[JonoBB]

Some (quite a bit) of this book has been debunked. See https://guzey.com/books/why-we-sleep/

(For the record, I don't disagree with the premise that sleeping patterns do change during the teenage years)

[hazything]

Can I ask why this was down voted? Looking at the linked article the author, while not a scientist in the field, seems to base his claims on reputable scientific research.