I still try it every few nights, and it still doesn't work. I usually
use audible to stream to my Google home, and then set a timer on
audible. No chance. It keeps playing without end.
It's insane to me that they can't figure this one out. I used to listen
to Audible on my phone, then, when they finally allowed casting to
Google home natively, it turns out the Google Devs destroyed the sleep
timer. And their reasoning is people did...