Using a laptop at night with migraine: dimming and warmth

Updated 2026-11-02

Quick answerIn a dark room, the screen should be much dimmer than in daylight: an evening study found 20 to 75 cd/m² comfortable in dim light. Lower brightness first, then add dark mode. Night modes warm the screen, but very warm 2800 K settings caused more fatigue in one study, so keep warmth moderate.

Steps

  1. Lower the laptop brightness with the keys.
  2. Turn on dark mode in the system and browser.
  3. Use Night Shift or Night light at moderate warmth.
  4. Keep some room light on rather than total darkness.

Good to know

  • Clinicians warn that avoiding all light can increase light sensitivity over time (Digre 2012).

FAQ

How bright should my screen be at night?

Much lower than by day; match it to the room light.

Is the warmest setting best?

Not necessarily; 2800 K screens caused the most fatigue in a 2024 study.

Sources

  • Investigation of the optimum display luminance of an LCD screen under different ambient illuminances in the evening. Applied Sciences, 2021. Link
  • Effects of screen color mode and color temperature on visual fatigue under different ambient illuminations. Int J Hum–Comput Interact, 2024. Link
  • Digre KB, Brennan KC. Shedding light on photophobia. J Neuro-Ophthalmol, 2012. Link
  • American Migraine Foundation. Photophobia (light sensitivity) and migraine. Link

Not a medical device and not medical advice. Migraine Mode is a screen-comfort tool: it does not diagnose, treat, cure or prevent migraine or any other condition, and it does not replace a doctor. Its settings are based on studies of light, colour, flicker, patterns and motion; the extension itself has not been clinically tested. When to see a doctor.