My sleep is fragmented because of having to go pee every 90 minutes or sometimes 3 hours. And sometimes stay awake for 1.5 hours. So maybe nine hours sleep over 11 hours or so. No prostate problem nor metabolic syndrome. And oxygen sat looks fine. Lots of supplements for all kinds of things.
I will occasionally take a supplement for annoying urge to pee - saw palmetto with pygeum.
Pygeum is the catalyst that make the 1st ingredient more effective. Bottle says 2 pills twice/day (seems excessive!) but I’m a rebel and a miser so I only take 1 pill when the frequency or urgency gets somewhat noticeable.
Bought a ‘6-month’ supply years ago, gave away about half of the unopened bottles and have almost a full bottle left still.
Only side effect is dry mouth when sleeping but I already have/had water bottle on nightstand due to excess snoring. Buy them at: stopagingnow.com