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.