> but is also based on predators who prefer to catch prey asleep
While it's true, that's why most people in ye olde times would awake about 1 am (gone to bed at 8 pm) have a snack and go back to bed.
Additionally there was also after snack siesta (we had those on Sunday afternoon).
In primeval times, having a brief pause relaxing in the tree after lunch seems like good way to prime you for sleep later in the evenings.
Sleep isn't a luxury, it's a necessity, necessary for our brains to defrag. Saying sleep is luxury is like saying eating isn't a necessity for survival.
As someone that at one point did trade day and night, I can tell you I was plagued by heart palpatations and general feeling of unease even after switching to 8hrs of sleep during day.
While it's true, that's why most people in ye olde times would awake about 1 am (gone to bed at 8 pm) have a snack and go back to bed.
Additionally there was also after snack siesta (we had those on Sunday afternoon).
In primeval times, having a brief pause relaxing in the tree after lunch seems like good way to prime you for sleep later in the evenings.
Sleep isn't a luxury, it's a necessity, necessary for our brains to defrag. Saying sleep is luxury is like saying eating isn't a necessity for survival.
As someone that at one point did trade day and night, I can tell you I was plagued by heart palpatations and general feeling of unease even after switching to 8hrs of sleep during day.