For me it was "buy high quality pillow" because you sleep for one thrid of a day etc. I needed a new pillow anyway so I came to the store and bought the best they had. And it was ... ok. Like it's a fine pillow but my sleeping haven't improved really, it's basically the same. So I was disapointed :(
Especially frustrating if you are a healthcare professional.
It is astonishing how many people give out bad medical advice here,on Reddit, Facebook,etc. with the notion of "well it worked for me".
Often it didn't even work.
I mean, yes, I know, it is a way for people to recover control after they "lost it" to their body.
But at least don't brag about it on the internet and even more don't start a fight with someone who clearly has more knowledge due to professional training and years of experience.
I've seen people fight the world leading specialist team on Reddit before.....