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Free articles, guides and tools on sleep. Every claim sourced, every page reviewed.

The library, in the order of the night

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Sleep calculator

Works back from your alarm to lights-off and the start of the wind-down.

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Wind-down planner

Turns your lights-off time into the hour before it, with the one alarm that matters.

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Latest

  • Better sleep

    How to fall asleep and stay asleep

    To fall asleep and stay asleep, two things must line up: real sleepiness at bedtime, and a body clock kept to the same hours. Fix the wake time first, let the evening wind down, and keep alcohol, heat and the phone out of the second half of the night.

  • Better sleep

    How to sleep better, ranked by the evidence

    The habits that help most are the dull ones: a fixed wake time, bed only when you're sleepy, and daylight and movement in the day. They work because they set your body clock and build real sleep pressure. Most of the other tips help a little, or not at all.