See my above answer why you need less sleep when you sleep segmented. As you realize correctly, its a social thing, not a evolutionary thing that we don't slee

See my above answer why you need less sleep when you sleep segmented. As you realize correctly, its a social thing, not a evolutionary thing that we don't sleep segmented anymore. I read Steve Pavlinas blog, still don't get it why he couldn't win over his wife to adapt to his sleep cycle, with all the benefits he pointed out :)