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Gear$$$Cheap: Roughly under $50, or under $15/month.

Blackout curtains

Lined curtains or blinds that keep street light and dawn out of a bedroom.

Curtains or blinds with a light-blocking lining, fitted to cut outside light in a bedroom. Sleep researchers point at them because light in the evening and overnight holds back melatonin and thins deep sleep. Think of them as the fixed version of an eye mask, and the more thorough one.

Who backs it

Sorted by strength of stance

  • Matthew WalkerRecommends

    Sleep scientist · author of Why We Sleep

    Darkness in the couple of hours before bed is not enough on his account. He wants the bedroom dark while you are actually lying in it, and blackout curtains are the first thing he names.

    Source: The Tim Ferriss Show #650 transcript

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Gear entry · notes paraphrased from cited sources, quoted excerpts copied from the transcript they link to. Not medical advice. Not affiliated with, endorsed by, or reviewed by anyone listed. How this works.