In the past I have not had much success in posing questions on this forum, but I keep hoping that some perceptive and original minds might read this and offer some original insight.

I know that scientists have no idea why we sleep. Any original ideas about that would be welcome, but my question is a little different.

My question is : Why do we lose consciousness when we sleep?

Many people have posited fanciful ideas about pseudo-spiritual and semi-religious dimensions of reality, most of which I have heard before and which I completely reject as patently false, but if those are the only explanations you have, well, go ahead and state them again, but i would really really appreciate if there is anyone with some original insight on this question.

JJ