The Magic of Sleep
Like Duolingo, but for The Magic of Sleep. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
For the part of you with thirty open tabs that never became anything.
A short one: 26 levels across 3 sections, about 52 minutes end to end, roughly 10 days at five minutes a day. It moves through What Happens While You Dream, Your Body's Internal Clock, and Building a Better Bedtime. It starts from scratch.
Free forever · No credit card · iPhone & Android

Key ideas in The Magic of Sleep
- A full cycle involves transitioning through non-REM stages first
- Stage 3 is the deepest stage focused on physical recovery
- REM sleep is characterized by high brain activity and dreaming
- Sleep progresses from light to deep stages before entering REM
- The proportion of REM and Deep sleep shifts across the night
- The body requires both physical repair (Deep) and cognitive processing (REM) which occur at different points in the cycle
- The primary physiological and mental functions associated with each specific sleep stage
- The typical sequence of a single sleep cycle
- Brain cells shrink during sleep to increase interstitial space
- Increased space allows cerebrospinal fluid to flow more freely
- Cerebrospinal fluid (CSF) is the medium for waste removal
- The glymphatic system is the pathway for this fluid
- The roles of different components in the brain's cleaning process
- How the brain's physical structure changes during sleep to facilitate waste removal
- Metabolic waste like beta-amyloid builds up without deep sleep
- Protein accumulation is a primary driver of neurodegenerative decline
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo gives The Magic of Sleep the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.
Here's what playing it feels like
A real question from this course. Take your best guess.
What is your body's main job during the very deep Stage 3 sleep?
Get it right to open this lesson and 25 more in the app.
Where The Magic of Sleep takes you
Discover how your brain cleans itself and builds memories while you dream. Learn the simple secrets to waking up feeling refreshed every single day.
- 1
What Happens While You Dream
- The Four Stages of Rest
- How Your Brain Washes Itself
- Why We See Strange Dreams
- Storing Your Daily Memories
- 2
Your Body's Internal Clock
- The Power of Morning Sunlight
- Why Teens Stay Up Late
- How Coffee Tricks Your Brain
- The Danger of Blue Light
- Finding Your Natural Rhythm
- The Science of the Power Nap
- 3
Building a Better Bedtime
- Cooling Down for Deep Sleep
- The Perfect Sleep Environment
- Relaxing Your Mind Before Bed
3 sections · 13 units · 26 levels. Built to play, not to enroll.
You pick the voice
The Magic of Sleep is taught in the Explain Like I'm 5 style: no big words. promise.. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
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Start The Magic of Sleep today.
Download Tomo, search The Magic of Sleep, and play your first lesson in under a minute.