Warm white light bulbs emit a warm yellow-white glow. As such, they are good for your home's kitchens, bathrooms, hallways, and other high-traffic areas. Cool or Bright White ...

You can also reduce the white point on your iPhone to adjust how intensely colors appear on your screen. Bright colors are especially illuminated at night time, so try this setting to dull them a bit.

On the "When Bedtime Starts" screen, choose your custom Set White Point shortcut. That's it! The white point on your iPhone display will now return to normal when your bedtime ends.