How to keep lullabies running

Currently any Lullaby I set “turns itself off” by gradually lowering the phone’s volume to zero. How do I stop this from happening and keep the Lullaby running at full volume the whole night?

Hello, sorry for the issue. Can you please double check that the Settings > Lullabies > Turn of when asleep is disabled? Please note that if you change that option but a sleep tracking is currently running the change will have effect on next start. So please first stop your current track and than turn off that option.

That did the trick, thank you.