Night Mode on All Devices After Sunset — Your Sleep Quality Depends on It

Blue light from screens suppresses melatonin production, the hormone that tells your body it is time to sleep. The effect is not subtle — studies show that evening screen use without a blue light filter can delay sleep onset by 30 minutes or more and reduce sleep quality even after you fall asleep.

Enable night mode (also called Night Shift, Night Light, or blue light filter) on every device you own and set it to activate automatically at sunset. The warm-toned screen looks odd for about two days, then you stop noticing. Your body, however, notices the difference immediately.