Originally Posted by chezlaw
There is variation in amount of sleep required. Do you observe that those who sleep less reproduce more?
Definitely beyond my scope of knowledge.
There are legends of massively productive (not necessarily re-productive) people who slept significantly less than the average person - Da Vinci -2 hours a night; Thomas Jefferson - 2 hours; Edison - 5 hours; Isaac Newton 3-4 hours; Ben Franklin 2-4; etc.
That of course raises lots of questions - would those people be so consumed with 'work' that reproducing is lower on their priority scale? Would those people, due to their accomplishments and status be 'desirable' and thus have more opportunities for reproduction than the 'average' sleeper? I have no clue.
I would hazard a guess that most people suffering from insomnia are among the lowest current sleepers in modern society. I would also guess that those folks generally aren't walking around with a fully functioning mind and thus - are not as desirable - and do not reproduce (or produce) as much as a normal citizen.
(I suppose all of this ignores the most obvious question - is "amount of sleep required" genetic?)