How to turn off blue light on iPhone using Night Shift

How-To: Set up and use Night Shift mode on iPhone and iPad [Video] - 9to5Mac

How to Enable Night Shift on iPhone, iPad, and Mac - Guiding Tech

Como ativar o Night Shift [iPhone, iPad e Mac] - MacMagazine

Does Apple's new Night Shift mode really give you a better night's sleep?, Sleep

Is Night Shift really helping you sleep better? - CNET

How to Activate Night Shift from Control Center in iOS 11

iOS 9.3 now available with Night Shift mode to help you sleep, iOS

Apple Previews iOS 9.3 with Night Shift, Health and News Improvements, New Education Features - MacStories

iOS 11: Enable/ Disable Night Shift Mode Using Control Center: iPhone

I tried using the new function Night Shift of iOS 9.3 which cuts the blue light at night by changing the screen color of iPhone to warm color system - GIGAZINE