I understood the rationale behind it but the question is do you have any evidence to back this up? Sounds like armchair theorizing to me.

You're completely right; I don't have solid evidence to back this up. In fact, that's why I'm doing this. I have various anecdotes and largely irrelevant sleep studies. This is preliminary exploratory research, to see whether it's worth my time to look into it further. It's whatever the opposite of 'armchair theorizing' is.