I personally hate wearing earpods earphones, and headsets. They are uncomfortable and they block your hearing of other sounds except what comes through them. It is a whole lot easier to wear a health monitor on the wrist than something on my ears, especially at night. I cannot imagine wearing earpods to bed, and no monitor on means no tracking pulse and sleep data during bedtime. And as bad as Alexa is at what she does, I sure as heck wouldn't trust my health her!
I can just imagine the large number of Big Pharma and snakeoil ads that will get pushed to you by Amazon if you buy such a device from them.