[mitola]

But yes, I remember reading in science journals regarding the natural rhythm of averagely around 10-11 o'clock in the morning. As the person mentioned before it was naturally for him to wake up later, or it was harder for him to wake up, until he god used to the unnatural rhythm.

But there was also some evidence regarding the era before modern technology and electricity about the time when people go to sleep naturally. which is actually surprisingly due to instead of spending time on screens they spent it socially or with other activities and still ended up in bed quite a bit later