Two minutes · eight claims

Earned or oversold? Sleep

Eight health claims you have probably heard. For each one, say whether the evidence has earned it. Then see what our library found, and how strong the evidence behind that verdict is.

All eight, with their receipts

01
A nightcap helps you sleep.
Alcohol and Sleep
LibraryOversold
Strong Evidence
02
Getting daylight soon after you wake helps you sleep at night.
Morning Sunlight Exposure for Sleep and Mood
LibraryEarned
Strong Evidence
03
Taping your mouth shut at night stops you snoring.
Mouth Taping for Sleep
LibraryToo early to say
Emerging
04
Your sleep tracker can tell you how much deep sleep you got.
Sleep Trackers: Trust the Trend, Not the Stage Breakdown
LibraryOversold
Moderate
05
A cooler bedroom helps you sleep better.
Sleep Temperature Environment
LibraryEarned
Strong Evidence
06
Magnesium before bed helps you sleep.
Magnesium Supplementation for Sleep
LibraryToo early to say
Moderate
07
If caffeine doesn't keep you awake, it isn't affecting your sleep.
Caffeine Timing and Sleep
LibraryOversold
Moderate
08
If you can't sleep, getting out of bed works better than lying there.
Bed Association and Stimulus Control
LibraryEarned
Strong Evidence

A verdict is the library's reading of the evidence today. When the evidence moves, the verdict moves with it.

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