drowsie
Inside every Drowsie
Meet DrOS, the brain that runs it all.
You press play and fall asleep. DrOS runs the rest of the night, and learns which sounds settle you, night by night.
One real night
You fall asleep. DrOS takes it from there.
This night is real, exactly as the app showed it the next morning. Every decision on it was made by DrOS, with nobody touching the phone.
Friday 18 Sep
9:21 pm → 5:27 amPinch to zoom · tap a bar for that minute
9:21 pm
It plays what settles you
At bedtime DrOS starts last night’s opening sound, your own pick, or its best pick for you. This night opened with Sitar Dreams.
Asleep
It fades once you’ve settled
Asleep in 7 minutes. Once you’ve been mostly still for about 30 minutes, the sound fades out over about a minute, so it isn’t playing all night.
2:59 am
It plays again as you start to wake
The pillow picked up the start of a wake, and within about half a minute DrOS faded in Box Fan. Sleep came back right away, and the sound faded out again at 3:24 am.
Morning
It wakes you gently
Set a time in the app. In the half hour before it, DrOS watches for a moment you’re already moving, and wakes you then from under your pillow, or at your set time at the latest.
And on its own, DrOS also:
- Picks up your last volume
- Steps aside if another app starts playing
- Plays for 3 hours a night at most
- Ends the night on its own when you get up in the morning
Night by night
It learns which sounds settle you.
Every night is a small test. DrOS notes how quickly you settle after each sound, and compares it with your own nights and wakes without one.
So some wakes it leaves quiet on purpose, more often in the first few weeks. That is how it can tell what a sound is really doing for you.
Night by night it leans toward what works, and still tries something new now and then, in case something works better.
It learns on your phone, from your own nights, using a Bayesian learning method. Yours, not an average of strangers.
What works for you
All sounds ›| Sound | Nights | Asleep in | Scorevs your 62 |
|---|---|---|---|
| Sitar Dreams | 12 | 13 min | -3 |
| Creek in Nature | 3 | 10 min | +11 |
| Native Flute | 3 | 15 min | +2 |
| Pink Noise | 3 | 6 min | +10 |
Drowsie plays what works for you more often.
How sounds contributed
›Extra minutes by week
Silent = your own nights and wakes without a sound.
Extra sleep
How it's counted ›Before counting starts
Drowsie is measuring what happens with and without a sound. Counting starts when it has:
Real sessions from real users.
The Drowsie app
The app, tab by tab.
On iPhone and Android: Tonight, Sounds, Sleep and Me, plus Partner when you link with someone. Most nights you’ll open it once to start the night, and again in the morning.
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Start the night
Three ways to begin: let DrOS run the night, play your own sounds, or play something from another app. Most nights, that’s the only tap.
- Let DrOS run it, start to finish
- Or choose your own sounds
- Or fall asleep to another app
screen from build 292
The sound library
Rain, fans, nature and music to fall asleep to. Play one yourself, or let DrOS choose.
- Rain, fans, nature and music
- Play one yourself, or let DrOS choose
- Your own apps still work too
Sleep score
7 h 46 m asleep · 96% efficient · no get-ups
Extra sleep
Breathing
Readings ›A few faster stretches.
Your nights
Every night in full: your sleep, estimated stages, breathing and heart rate, and which sounds settle you.
- Your full night, minute by minute
- Breathing and heart rate, read through the pillow
- What works for you, sound by sound
screen from build 292
Your Drowsie
Your Drowsie, the gentle alarm, your settings and the guides, in one place.
- Your Drowsie
- The gentle alarm
- Settings and guides
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Your nights together
This tab appears once you link with a partner: two accounts, a Drowsie each, and how your nights affect each other.
- A Drowsie each, linked in the app
- Your wakes and turns, side by side
- How one night affects the other
Partner Mode
One bed. Two different nights.
With a Drowsie each, DrOS runs a separate night for each of you. Link your two accounts, and the app shows how your nights affect each other.
- A Drowsie eachEach under its own pillow, each playing its own sound.
- Linked in the appTwo accounts, one invite. On iPhone and Android.
- Your nights, side by sideSee each other’s wakes and turns, and how one night affects the other.
Sleep Club
Your first year is included.
DrOS and everything in the app come with your first year of Sleep Club, on the Just you plan and the Partner Pack. And without the app, Drowsie still plays anything from any phone over Bluetooth.
Included in your first year
- DrOS, running every night
- The Sleep tab: your nights, breathing and heart rate
- The gentle alarm
- Partner Mode
- The Drowsie sound library
Your phone
On iPhone and Android.
iPhone
iOS 17 or later, on the App Store.
Android
Android 8 or later, on Google Play.
Four nights a charge
Or more, on one USB-C charge.
Questions
About DrOS and the app.
Do I need the app?
Not to play sound: without the app, Drowsie plays anything from any phone over Bluetooth. DrOS, the Sleep tab, the gentle alarm and Partner Mode all run through the Drowsie app.
Does my phone need to stay nearby?
Yes, keep it in the bedroom. DrOS runs on your phone and talks to Drowsie over Bluetooth all night. Without the phone nearby, Drowsie still plays what the phone sends it, but DrOS can’t run or read the night.
What does each part do?
Drowsie reads your movement, breathing and heart rate through the pillow, and plays the sound. Your phone runs DrOS: every decision, and the learning. Your account keeps your nights and what DrOS has learned, and builds your Sleep tab.
How does DrOS learn what settles me?
By comparing: how quickly you settle after a sound, against your own nights and wakes without one. That’s why some wakes are left quiet on purpose. It learns on your phone, just for you, using a Bayesian learning method.
Can my partner use it too?
Yes, with a Drowsie each. Link your two accounts, and Partner Mode shows how your nights affect each other. It works on iPhone and Android.
Which phones does it work with?
iPhone with iOS 17 or later, and Android 8 or later.
Is Drowsie mine to keep?
Yes. Drowsie is yours, and it always plays anything from any phone over Bluetooth.
How long does the battery last?
Four or more nights on a charge. It charges with the USB-C cable in the box.
