There is overall no health benefit since the hypoxic phase is quite long and creates stress during a time when the body is supposed to rest and recover. And that compounds with the underlying issue, usually mouth breathing, bad pillow, bad sleeping position, or a combination of these.

Came to say this. If one day I don't wake up, at least everyone will know my brain was lit beforehand!

Maybe this is the link between sleep apnea and hypertension.