Mental Floss

SLEEP

Laughter: Still a scientific mystery

Experts have no real explanation for why we laugh.

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Getting six to eight hours of sleep seems to be the sweet spot.

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If you want to recall more dreams, sleep longer.

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Feeling groggy after your nap? It's not just you.

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A good soak might actually be an effective treatment for clinically diagnosed mood disorders.

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Unfortunately for you, reading this article on your phone in the dark won’t help, so make sure to arm yourself with these tips before you hit the sack.

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The many weird and wonderful ways animals manage to catch some z's.

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There are few things more unpleasant than waking up in the middle of the night covered in sweat. We tested some sheets that promise to keep you cool and dry.

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Forget sheep—counting happy little trees can help you fall asleep, too.

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The new study could change the way we think about sleep debt.

REM-Fit

It's made to keep you from snoring, track your sleep, and let you jam to music without your partner hearing.

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News you can use this holiday season.

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Identifying as an insomniac will only make your sleep worse, a new study suggests.

Tengi

Instead of counting sheep, you may want to start counting yaks.

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Because it's amazing, that's why. (But also, you know, comfort.)

Lush Cosmetics North America

Lush's body lotion is popular, but can it really help you catch some z's?

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Even the most dedicated night owls can train themselves to become early risers.

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According to a recent study, naturally staggered sleep schedules means that someone is always awake and vigilant.

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Scientists say sleeping during the day and working at night could block necessary regeneration of damaged DNA.

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Your inconsistent sleep schedule could be wearing on your health.

Gravity

It feels like snuggling a giant Beanie Baby.

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Knowing your chronotype can help you make better food choices.

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Scientists say some survive on as little as two hours a night and can go up to 46 hours without sleeping.

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Scarily, 35 percent of American adults sleep less than seven hours daily.