A new feature in iOS 9.3 could help millions of people get more sleep.
Reading on a screen at night is probably killing your sleep: Research shows that using a tablet, smartphone, or laptop for a couple of hours before bed can cause you to lose as much as an hour’s worth of sleep per night. With its next major software update to iOS 9 Apple is looking to solve the problem, automatically adjusting the color of the light coming from your iPhone or iPad’s screen when it’s dark out so you fall asleep more easily.
