Night vision
Night vision: Blue light tells your brain to wake up. You can switch your iPhone to warmer red hues for bedtime — and it looks neat, too. Go to Settings > Accessibility > Display & Text Size. Turn on Color Filters, then choose Color Tint, and move Intensity and Hue all the way to the right.
Tags: accessibility, Apple iPhone, bedtime, blue light, color, display, filters, hue, night vision, settings, text, Text Size, vision