Sleep
Evening Blue Light
Evening blue light from screens and bright LEDs can delay melatonin and push back sleep. Warm dim lighting and pre-bed screen curfews help most desk schedules.
Evening blue light is short-wavelength light from screens and bright LEDs that can delay melatonin when exposure runs late into the night. Dim, warm lamps and a screen curfew before bed protect sleep onset for many desk workers.
Night shift may need different rules—consistency matters.
Common questions
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How long before bed should you stop screens?
Sixty to ninety minutes is a common target, but even thirty minutes helps if you keep brightness low. Pair with a fixed wake time for stronger rhythm.
Related terms
Put Evening Blue Light into practice
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