3. iOS 11 in bed tips
How to set the alarm based on when you go to sleep: The iOS 11 Clock app can remind you to go to bed and then wake you up 8 hours later for example. To set it, go to the Bedtime section in the Apple Clock app and set it up from there.
How to schedule Night Shift mode: Added in iOS 9.3, Night Shift is a feature that can automatically shift the colours of your display to the warmer end of the colour spectrum after dark. It’s not on by default so to turn it on, go to Settings > Display & Brightness > Night Shift. Here you set when you want it scheduled to run or “Manually enable it until tomorrow”. You can also set the “warmth” of the display from “Less warm” to “More warm”.
Schedule Do Not Disturb: If you want to be sure random email messages and Facebook alerts don’t wake you up in the night, go to Settings > Do Not Disturb and then toggle the Scheduled option before choosing a time for it to be on.