Except that they don't. Or at least many, many people report that they don't, including myself and I have tried all the remedies that supposedly help. If you don't provide an off button and you can't build a product this expensive to power itself off reliably for everyone, then you've failed at product design.

I didn't see a reply to the responses to you saying to reset them.

One question I have - do you have them connected to an Android device via bluetooth? Most Android devices will keep them awake by pinging them incessantly.

They don't, because almost entirely is not the same as entirely.