3 ms·

This article (which I was reminded of by this thread) gives an overview of sleep for teenagers, and it isn't radically different for anyone else either: https:

• grumdan 8y ago
  This would still be consistent with there being genetic (or otherwise hard to change in adulthood) factors that make a person function better with a shifted sleep cycle. It's not at all clear that it's all environmental (like the post I replied seemed to imply) and I find it irritating when people make such sweeping claims without evidence.
  • hkt 8y ago
    That's an entirely reasonable thing to be irritated at.