Matthew Walker

Eight human beings in a single pilot study are the empirical foundation of a number that has, by now, been recited to tens of millions of people as established fact.

Hollywood loves this type of stuff that you utter out your deepest, darkest, guiltiest secrets in a muttering of somniloquy. But no, the PIN code to the safe.

I don't really even think about it like that because they're so so related. Everyone knows the way physical health plays a part in them feeling better or their mood being better, but they just don't think or understand t

Boredom does not lead to you falling asleep. Boredom unmasks your sleep debt.

for every 5% reduction in REM sleep, there was an associated 13% increase in mortality death risk rate.

people who slept fewer than 6 hours per night were about four times more likely to develop a cold compared to people who got the recommended amount of at least 7 hours per night.

when a mother is ready to give birth to a new killer whale baby, it will leave the pod... the mother will undergo long stretches of total sleep deprivation, keeping vigilant watch over her calf.

Sleep isn't something that you make happen. Sleep is something that happens to you. And having this prescribed bedtime, this pressure actually tends to push that sleep away, but you can control when you wake up.

Absence of evidence isn't evidence of absence.

Don't think about nightly headlines. Think about weekly trend lines.

Every hour isn't created equal in my eyes, right? And there are more optimal times to sleep, to take a nap, to train for that matter.

you can think of REM sleep dreaming as a form of informational Alchemy and what we're doing is building new and novel connections and associations and as a consequence we awake the next morning with a revised mind Wide W

for nearly 4% of adults nightmares are so prevalent so severe and so hurtful that they end up interrupting their ability to have a good night of sleep on a weekly basis

It's almost like a spin bike class at the gym where when those employees are underslept everyone looks like they're working hard but the scenery never changes — there's no forward progression in terms of the business bec