[themodelplumber]

Nitpick: "are related"..."may reduce"...these are links, not causation.

I tested this myself and found A) my sleep did not get any worse when I worked from bed and B) if anything, it got better, especially during times of illness, because I was able to get some important things done at the higher-energy highs and this in turn helped me get better sleep later.

IMO the bed and laying down in general is a great place to do mental activities including work tasks. I continue to get great results from planning (incl. pseudocoding) while laying down.

Anecdata, but I'm noticing that a lot of people aren't testing this themselves, just trusting somebody else's bell curve, along which they may actually plot at any given point.