Thanks for bringing this up. I came across this as well, but didn't want to make the post too long. Its interesting how mainstream media and science has trained us away from that idea and that we "need" 8 hours of uninterrupted sleep, causing lots of angst to those that don't manage it. I'm sure if people embraced that waking time as those back in the medievil times did, it would reduce alot of anxiety people have, as well as be better for us overall. Thanks so much for your comment!