Night Shift Enabled

When I recently allowed a software upgrade on my iPhone I receive this message:  "Night Shift When enabled, Night Shift uses your iOS device’s clock and geolocation to determine when it’s sunset in your location, then it automatically shifts the colors in your display to the warmer end of the spectrum and may even help you get a better night’s sleep."  Apple understands the importance of not having blue light in the evening which inhibits melatonin production.  I would add a bit more to this message if you are wanting a good night's sleep- don't use your phones or computers at least 1 hour before you are wanting to sleep.  Not only will the blue light effect your sleep, the stimulation of your brain in using these devices can keep you awake.