For many people, bedtime no longer means simply turning off the lights. It often means one last scroll through social media, a few minutes of streaming, a quick email check, or falling asleep with a phone close enough to reach in the dark.
Those habits can feel normal, especially after a busy day. But for some people, the way the evening winds down may play a bigger role in sleep quality than they realize.
Why Screens Can Make Bedtime Harder
The body follows a natural sleep-wake cycle often called the circadian rhythm. This internal clock helps signal when it is time to feel alert and when it is time to rest.
Research suggests that bright light in the evening, including light from electronic screens, may delay the body’s natural production of melatonin. Melatonin is a hormone involved in regulating sleep. When that timing is disrupted, some people may find it harder to fall asleep or keep a steady bedtime routine.