Can Apple's 'Night Shift' Really Help You Sleep Better?

A new iPhone feature called "Night Shift" automatically adjusts the screen’s colors to warmer hues after sunset, on the premise that this change could help people sleep better. Night Shift is now available as part of Apple's latest mobile operating system update, iOS 9.3, which was released Monday (March 21). The feature uses the iPhone or iPad's clock and geolocation services to determine when sunset is happening in your area, and then automatically adjusts the screen's colors to redder,