If the bright light of your iPhone or iPad display is bothering your eyes, Apple's iOS and iPadOS support system-wide dark mode. Here's how to turn it on.
If your iPhone's always-on display is a bit too bright for your liking, here's how to tone it down or turn it off.
Your iPhone offers ... To enjoy Background Sounds when other media is playing, select Use When Media in Playing. To allow sounds to play on the Lock Screen, turn off Stop Sounds When Locked.