iOS can use this quick guide to customize sleep mode settings on their iPhone.

This also means that you'll need to go back into the Clock app and select a ringtone if you ever want an audible timer in the future. One of those most popular apps is Sleep Music Timer for iPhones and Sleep. Your preference to stop playing media when the timer finishes will be remembered, so if you want to quickly set a sleep timer in the future, swipe up from the bottom of the screen, force touch on the clock icon and select one of the preset times. It will also lock your device so your screen won't stay on if you've been watching a video - which is helpful to save your battery if your device isn't being charged. Whether you're watching a movie, YouTube videos, streaming music in Spotify or listening to a podcast, the Stop Playing function of the timer will stop any media that's currently playing. iPhone and iPod models are charged when docked if the Zeppelin Air is on, in Standby or Sleep mode. Older iPod and iPhone models or alternative music players, may be used by connecting their headphone sockets to the Zeppelin Air rear panel AUX input. Scroll all the way to the bottom and select Stop Playing. iPhone 5, iPod touch (5th generation) and iPod nano (7th generation).Set the timer length that you want in hours and minutes.Tap on Timer in the bottom right corner to switch to the correct tab.(You can quickly launch Clock from anywhere by swiping up from the bottom of the screen and tapping on the clock icon.) So why use this over one of the many third-party apps? Not only will it allow you to delete an unneeded app from your phone, it also, unlike third-party sleep timers, doesn't require the Clock app to be left open with the screen on for the sleep timer to actually do its job. But rather than playing a sound after the timer has finished, it stops anything that's playing. Note: You can customize your Sleep Focus to allow interruptions by notifications important to you and phone calls from people important to you.

Iphone sleep mode settings