You will need to choose one of the options listed above. Note that you are not able to set a custom amount of time for the sleep timer. The available times that appear on the “Stop audio in” screen include: Once you have elected to set a Spotify sleep timer in the Spotify iPhone app you will be able to select from a variety of different time periods. More Information on How to Set a Spotify Sleep Timer – iPhone Note that these same steps will also let you change or disable the Spotify timer for Android users, so it’s not just restricted to the iOS device app version. If you are trying to change the duration of the sleep timer then you would simply select another time instead of choosing to turn the timer off. You will then choose the Sleep timer option again, then scroll to the bottom of the screen where you will find a “Turn off timer” option.
You can do this by returning to the Now Playing screen and tapping the three dots at the top-right of the screen. If you had followed the steps above to set the sleep timer then you might encounter a situation where you need to stop the timer or change the duration of time. How to Turn Off the Spotify Sleep Timer Feature in the iPhone Spotify App
You can continue to the next section for additional discussion on using the Apple iPhone Spotify sleep timer.