A study from BYU published in the journal Sleep Health finds that so-called “night modes” on smart devices do not have an impact on the subject’s ability to go to sleep at night. BYU’s ...

The Sleep Foundation recommends powering down your electronic devices, like cellphones, at least 30 minutes before bed. But in today’s plugged-in world, that’s easier said than done ...

Too much blue light in the evening can interfere with your sleep. Setting Night Shift in iOS 18 helps cut down on blue light. We show you how to use it.