Sleep is Not a
Power Down
It is a neuro-chemical rollercoaster. From paralyzing your body to washing your brain, explore the 5 mind-bending truths about what happens when you close your eyes.
Start ExploringThe 90-Minute Architecture
Sleep isn't a flat line. It's a wave. (See the State of Sleep report.) Understanding where you are in the cycle is the key to energy. Explore the napping zones below.
Select a Strategy:
The Nightly Brain Wash
While you are awake, your brain cells are packed tightly together. But during sleep, the glymphatic system kicks in. The space between cells expands by up to 60%, allowing cerebrospinal fluid to rush through and flush out toxins like beta-amyloid. (Learn more about why sleep matters.)
Why it matters:
- Clears metabolic waste
- Prevents cognitive decline
- "Rinse cycle" for your neural pathways
Safety Lock: REM Atonia
Why don't you physically run when you dream about running? Your brain chemically paralyzes your major muscle groups to keep you safe.
The Mechanism
During Rapid Eye Movement (REM) sleep, your brain activity is nearly identical to when you are awake. You are processing emotions and visualizing complex scenarios.
To prevent injury, the brainstem sends inhibitory signals to the spinal cord, inducing Atonia—temporary muscle paralysis.
Did you know? "Sleep Paralysis" is simply your mind waking up before this chemical safety lock has disengaged.
Hack Your Dreams
Techniques to wake up while you are asleep.
Mnemonic Induction of Lucid Dreams
This technique relies on prospective memory—the intention to do something in the future.
Set Intention
As you fall asleep, repeat: "Next time I'm dreaming, I will remember I'm dreaming."
Visualize
Imagine yourself becoming lucid in a recent dream you recall.
Repeat
Do this until you fall asleep. Focus is key.