Tbh I thought it played for an hour too (and mine used to as well, which
I much preferred), but this is what the lady I spoke to sent to me,
where it says it plays for 12 hours:
https://support.google.com/googlenest/answer/7364558?hl=en
I noticed this change a few months ago, apparently the sleep sounds are
meant to last for 12 hours and was probably a glitch in the software
that’s since been updated (just spoke to google help centre via chat).
It’s a shame though as having it on fo...