I have seen old posts about this but no solutions. I have a Sonos One with google assistant. I also have a Roam and Move. None of these speakers are able to play white noise indefinitely like you can on Google Home/Nest products. It will play 15 minutes to 1 hour of ocean sounds and then stop. This is a problem if you use white noise for kids naps or sleep. Sonos phone and email support have not been able to explain to me the problem. I have seen complaints about this with Alexa too and it’s related to some sort of time out.
Appreciate if others have the same problem or know what the reason is. I imagine Google also makes full implementation of their voice difficult.