Welcome to the Commune podcast. My name is Jeff Krasno. So today we will explore part four of my sleep

course, rest as a law of life. Indeed, all over the planet, life is resting. Every animal sleeps.

Now, some birds and dolphins just sleep with one hemisphere of their brain at a time. But we're all sleeping. Sleep is the

thread that stitches the entire living world together. It's not a luxury or an accident. It's an

ancient rhythm. And yet somehow in our species, we've forgotten the essential nature of sleep.

Sleep doesn't just keep us alive. It makes us human. It's what

allows memories to form, emotions to settle, creativity to rise. It's where the mind integrates,

repairs, and dreams. In sleep, we become whole again. This episode explores what sleep looks like across the living world, what makes it possible

in us, and how to bring those natural rhythms back into our own lives. I'm Jeff Krasno,

and welcome to Sleep Essentials. Sleep is universal and yet mysterious. Every creature on earth from the smallest fly to the largest

whale must surrender to it. But how? Some dream, some drift, some keep one eye open. So let's

step out of the human bedroom and into the wild to see how evolution reimagined rest in a thousand

different ways. Get ready for some wild sleep habits. Sleep isn't a luxury. However strange, short,

or elaborate, every creature must rest. Even insects pause their constant motion. Fruit flies enter states of reduced

responsiveness, almost indistinguishable from sleep. Honeybees nod off in rhythmic cycles. Ants take

hundreds of synchronized micronaps each day resting in waves across the colony.

Fish drift too. Zebrafish show lowered activity and slower responses.

Parrot fish wrap themselves in mucous cocoons each night,

veils that mask their scent from predators.

Among birds and mammals, sleep becomes more complex.

They share versions of both REM and non-REM sleep.

Migratory swifts can nap while in flight,

...