If you like listening to audio before drifting off to sleep but don’t want to be woken up in the middle of the night by the continuing drone of your favorite NPR show, then check out the sleep timer function.
For iTunes or Spotify simply open the clock app, scroll to the timer icon and select Stop Playing at the bottom. This will silence unwanted tunes after a set period.
In the podcast app expand the play bar to full screen and press the crescent moon icon which will allow you to set a sleep timer. Audiobooks through Audible will offer the same feature.