Sleep
Circadian-Friendly Lighting
Circadian-friendly lighting aligns brightness and color temperature with time of day—brighter mornings and warmer dim evenings—to support alertness and melatonin timing.
Circadian-friendly lighting matches brightness and spectrum to time of day—bright, cooler light for morning focus; warm, dim light at night. Fixed overhead LEDs on max all evening fight biology even if you feel used to them.
Layer task lights and automate gradual sunset scenes where possible.
Common questions
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What color temperature is best at night?
Warm tones around 2700K or lower with low overall luminance are typical targets. Bright cool-white overheads before bed delay melatonin even if walls look cozy.
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Do smart bulbs help circadian lighting?
Automated schedules reduce willpower drift—sunrise ramps in bedrooms and sunset scenes in living areas. Pair automation with real morning outdoor light when possible.
Related terms
Put Circadian-Friendly Lighting into practice
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