How to Configure Night Shift Mode in iPhone, iPad – iOS 11
If you are using latest model of iPhone or iPad Pro you can enable Night Shift Mode within your device. Night shift mode will change your iPhone or iPad screen colour to warm (Yellow tint). This is very useful for using your iPhone or iPad during night time. It will reduce strain on your eyes. It helps to get better sleep after using iPhone at night. Research says that if you use your mobile phone before going to sleep it will affect your sleep pattern. So warm light will be helpful to getter sleep. Thats why apple introduced Night Shift Mode within iPhone.