Use Night Shift on your iPhone, iPad, and iPod touch - Apple Support

How to Enable / Disable Night Shift from Control Center on iPhone & iPad

Turn your Sleep Focus on or off on iPhone - Apple Support

iPad User Guide - Apple Support

Turn off alarms and delete sleep schedules in Health on iPhone - Apple Support

Ready For Bed? How to Stop Blue Light From Disturbing Your Sleep

Zoom in on the iPhone screen - Apple Support

Clear the history, cache, and cookies from Safari on your iPhone, iPad, or iPod touch - Apple Support

Use Switch Control on your device to control another Apple device – Apple Support (UK)

Reach the top of the iPhone screen with one hand - Apple Support

Use and customize Control Center on iPhone - Apple Support

Use Screen Time on your iPhone, iPad, or iPod touch - Apple Support (CA)

Trouble Falling Asleep? Change These iPhone Settings to Speed Up the Process - CNET

Use Guided Access on iPhone - Apple Support

Use Voice Control on your iPhone, iPad, or iPod touch - Apple Support

Adjust the screen brightness and color on iPhone - Apple Support