According to a new study published in Current Biology, the "night mode" on your phone could actually be worse for your sleep pattern. Scientists say the blue light, which is significantly reduced when night mode is enabled, could be telling our brain that it's night time because it resembles the colors of twilight. From the report: According to the study, brightness levels are more important than color when it comes to stimulating the body clock. However, when the light is equally dim, blue is more relaxing than yellow. This makes basic sense: daylight is yellow, twilight is blue, and sunrise and sunset are pretty reliable ways to tell your body clock what time it is. Of course, at this point, we only know it works on mice -- and mice don't have phones. "We think there is good reason to believe it's also true in humans," says Dr Brown, lead author of the study.
There is perhaps a more obvious truth to be drawn -- if your phone is telling you to switch to night mode, it is time to put down your phone. It is not the color of the screen that is keeping you awake; it is all the stuff your phone offers as an alternative to sleep at 2am. There is only one real night-mode switch: the off button.
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