[mstudio]

The article addresses this here:

> Early school starts are not the only cause of teenage drowsiness, but they are a crucial factor—especially because natural sleep cycles make it difficult for post-puberty teenagers to fall asleep before 11 p.m.

[logifail]

> natural sleep cycles make it difficult for post-puberty teenagers to fall asleep before 11 p.m

(We have one post-puberty teenager and two other kids) ... our experience is that this does depend on whether you let your kids keep their phones and tablets in their bedrooms.

As many adults will confirm, going to sleep sure is easier without distractions.

[seba_dos1]

It's incredible how so many people just fail so hard to consider that other people may not share their exact same experiences.

Yes, you can probably distract someone into not sleeping who would be sleeping well otherwise. Most people however will struggle with sleeping at unnatural hours regardless of any distractions, and may use their phones and tablets in their bedrooms in hopes to help themselves fall asleep earlier.

[fzeroracer]

It's not.

Source: I was a teen once in an era without smartphones. Turns out lights out at 10pm didn't help me sleep at all, I just tossed and turned for a few hours until my body said it was time to sleep.

[InitialLastName]

I was a teenager before cellphones were ubiquitous; I still found plenty of ways to avoid sleeping when I found myself awake and in bed.

[tesdinger]

You wake up when sunlight wakes you up and then get tired around 16-17 hours after that, if sunlight is gone. Distractions are a smaller factor.

[kevingadd]

Insomnia wasn't invented by Google and Facebook