Have we yet to discover on average how long it takes for a human o sleep?

Yes suprachiasmatic nucleus in the hypothalamus is responsible for sleep. If you want specifics research/google/yahoo those terms.

I do not know if you mean how many hours does an average human sleep or how long does it take for an average human to "sleep"(Fall to sleep?)

so, I cant answer. But the answers are in those terms. The science of sleep is understood.

According to research compiled at the Univ of Kansas in their lifestyle-depression project, the idea that it depends on the individual and that some people can do fine with much less than 7 hours is a myth. People need 8 hours, they say, maybe a bit more.

If you go to Metapsychology, you can read a psychologist's review of Dr Steve Ilardi's book ("a splendid book"). He headed the Kansas project.

Takes me like 2 hours of lying in bed doing nothing, I’m a weirdo

That depends on the individual

yes.

average = (min + max) / 2