Until recently, claims of better sleep due to Night Shift have been theoretical. However, a new study from BYU published in Sleep Health challenges the premise made by phone manufacturers and found that the Night Shift functionality does not actually improve sleep.

Is it better to have night shift warmer?

It reduces the blue light emitted by your phone/tablet's display, which should, ideally, reduce the strain on your eyes while you're using the device late at night. And basically every Android phone maker soon followed suit with a similar feature. ... Thus, our bodies are more likely to associate blue light with bed time.

Does night shift really help?

In fact, it might not actually work at all. A new Brigham Young University study published in Sleep Health has concluded that, as it relates to a person's quality of your sleep, Night Shift has no real effect.