crazymalhavoc

The Wirecutter Reviews folks regularly look at sleep masks and I've used a few that they recommend though I can say from experience ones that have velcro straps on the back as opposed to being fitted to your head can be problematic from a comfort point of view if you normally sleep on your back.

I use the Nidra ones primarily as I can blink without my eyelashes catching the mask

https://www.nytimes.com/wirecutter/reviews/best-sleep-mask/

Another wrap around option with audio are the SleepPhones, while not designed to go over your eyes they work well that way and before switching to the Nidra and A20 ear buds that was my primary headset for about a decade.

https://www.sleepphones.com/

As to audio specifically, the Anker A20 work well even if you are a side sleeper

https://www.soundcore.com/products/sleep-a20-sleeping-earbud...

Notwithstanding the above, blackout blinds are awesome as long as they extend above and below and past the sides of the window frame. Can be quite low cost from places like Costco.

Those are pretty slick, will check those Yoolax ones out, have manual versions from Ikea that work well for both temperature control and light control.

https://www.ikea.com/ca/en/p/trippevals-blackout-cellular-bl...

Yes please, document this, this sounds great!

From my point of view, that's the whole point of wearing a continuous biometric monitor so that you can see the normal variation. These one off medical tests that people use to make major life and health decisions seems kinda crazy to me.