> An unbroken eight hours of sleep did not always fit with the cycles of the sky above and sleep was therefore rhythmically polyphasic.
I tend to disagree. There is serious literature suggesting this, but to my knowledge no concrete evidence confirms it. In fact the industrial age did not arrive uniformly to all societies on Earth. We should have seen polyphasic sleep practice long ago in non-industrialized nations. Anyone aware of anything like this?
I could get inflammatory and say that functional members of society are being discriminated against in this way, or flip it around, stating that any disadvantage that requires you interacting with public services is systemically pushing you away from meaningful employment.
BTW, nights were I have dream recall afterwards, are the best. Anyone else have made the same observation?
By contrast, my observation is that MOST of the world's population still works from about an hour after dawn until early afternoon, or sometimes until dusk, depending on their age, job, station in life and the general level of resources they have versus what they need. And they probably always did.
This is an interesting point. It makes me wonder what unmarried people did, though. I suppose if you stayed with family, your mother would go to the shops. Did young people not used to live on their own as commonly?
Actually single person living alone in place solely being their use is rather new development.
Besides, if we go back far enough, upperish middle class people would hire servants. The original 101 Dalmatians film comes to mind.
A day off? Are you mad! During the industrial revolution as a factory worker? Only on Sundays, if you are lucky.
1. Going to bed early and rising early, closer to 8 pm to 4:30 am.
2. An afternoon nap is extremely beneficial to having an attentive and productive evening. The nap makes quick work of clearing accumulated waste from the brain. Employers would do well to have nap pods for a 30 minute nap as a default, although longer is useful if you are at home. A nap doesn't negate the need for exercise.
3. Biphasic sleep at night as needed.
Researchers who lived in African tribes that are _really_ following the "old ways" found that tribespeople followed all kinds of sleep schedules. Somebody was up at almost _all_ times, including the middle of the night.
This makes total sense: you want at least somebody to be awake at all times to raise the alarm if a pride of lions happens to wander close by.
By doing the "split day" you just switch to another fixed pattern.
I also fall into the camp where I believe that there are probably a variety of different sleep cycles that people are just predisposed to. I haven't seen any studies definitively indicating that there are a common sleep cycle. Even anecdotally, I know several people that are just more alert at night.
I've always wondered if there was a way to structure society so that there could be more time variety in socially needed functions. Perhaps one bank could be open 9-5 but another bank could be open 5-12. Or at the very least, improved flexibility for jobs where constant communication is not needed and can be done asynchronously. A set of core hours where communications could happen and then allow workers to work on their own cycles, taking naps as needed so that they can operate when they are most productive.
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When I was younger I hated siestas because I had energy and everything was closed, you couldn't do anything in those hours. It felt like a waste. In fact I think that sports clubs, book clubs and similar things are not as important here as in other countries of Europe (at least from my perspective, no data) because people don't have time. After siesta, stores open and you have to do your chores, giving you no time to have a leisure activity (other than going to the bar and drink, that is).
And if you work keep in mind the shift is 8 hours, so how do you fit siesta in it? A way is to start working early and having lunch very late, working like 7-15. Some government offices and factories work this way. Some people like this schedule but waking up so early, specially during winter I think defeats the point of siesta, as you're probably damaging your body in the morning. Other like me have a split schedule with lunch in the middle, more similar to Europe but the problem is that you leave later. Because at some jobs the mandatory stop is 2 hours.
Now, schools have also different schedules to fit better into their parents schedules and there's been an infinite discussion about which one is better for children. The reality is that is a mess. If we could work less than 8 hours, it would be much better but 8 hours plus siesta is difficult to put up with.