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FOR PARENTS AND CAREGIVERS

The Impact of Blue Light on Infant Melatonin Production

How blue light can affect an infant's melatonin and sleep patterns, and what that means for your nursery setup.

Illustration for The Impact of Blue Light on Infant Melatonin Production

The Role of Light in Sleep

Light exposure can play a role in regulating our internal sleep-wake cycles. Blue light, specifically, is often associated with daylight and may signal to the body that it is time to be awake.

Supporting Infant Sleep Rhythms

Infants are gradually developing their own sleep rhythms. Managing their environment may support this natural progression.

  • Reducing exposure to bright screens before bedtime can be associated with smoother transitions to sleep.
  • Creating a dimly lit environment in the evening may support the body's natural melatonin production.

The evidence base for this topic

4 peer-reviewed sources, each verified against its PubMed record and labelled by study type. These are the literature this topic rests on rather than a citation for every individual sentence — see how we source.

  1. Systematic review of light exposure impact on human circadian rhythm

    Chronobiology international · 2019 · Systematic Review · PMID 30311830

  2. Long-lasting effects of disturbing the circadian rhythm or sleep in adolescence

    Brain research bulletin · 2024 · Review · PMID 38759704

  3. Is Melatonin the "Next Vitamin D"?: A Review of Emerging Science, Clinical Uses, Safety, and Dietary Supplements

    Nutrients · 2022 · Review · PMID 36235587

  4. Development of the circadian system in early life: maternal and environmental factors

    Journal of physiological anthropology · 2022 · Review · PMID 35578354