Euhora
Watch the film (2:15)
A man sleeps peacefully under a patchwork quilt, the bedside lamp still glowing. His watch is on his wrist; his phone lies on the nightstand.

Euhora · Coming soon

Sleep without stress.

An alarm for Apple Watch that counts from the moment you fall asleep. Set how long you want to sleep and the latest you can get up. No bedtime math, no checking the clock.

Watch the film · 2:15How it works
Evening. In green pajamas, he sits in an armchair by a warm lamp, smiling at his phone.

One night, before Euhora

Tonight, I was finally going to do it right.

His hand writes the plan on paper: 9:00 PM to 5:00 AM, 8 hours, with a check mark.

Asleep by nine, up at five.

Eight hours. Perfect.

9:00 PM. He lies in bed under the quilt, the lamp still on, the moon in the window.

Good night, new me.

Closer: his eyes are closed.

Okay. Sleep.

Still awake in the dark. A crayon alarm clock and a question mark float above him.

…Still awake. What time is it?

It’s fine. Plenty of time.

…Right?

A worried close-up. His eyes slide toward the nightstand.

Just one quick look.

He squeezes his eyes shut.
His eyes snap open. A thought cloud: 5:00 AM?
Lying with the lit phone on his chest. A thought cloud: equals 8 hours, check.
He closes his eyes in a long sigh. The phone on his chest goes dark.

9:20 PM

Nine twenty already.

Sleep. Right now.

Still not asleep? I have to be up at five…

…is that enough?

10:00 PM

Ten o’clock. Up at five, that’s seven hours.

Only seven!

Forget it. I’ll move the alarm to six.

Eight hours again…

if I fell asleep right now.

Ten thirty…

…six thirty.

Eleven…

…seven.

Midnight?!

…I give up.

Wide awake, staring up. The phone on his chest still glows.

The more minutes I counted,

the more awake I felt.

The night passes. The moon moves across the window; faint numbers still hang on the wall.
Morning light. He sits on the edge of the bed, exhausted.

Morning came.

I’d spent the whole night doing math…

…instead of sleeping.

What if I didn’t have to do the math?

What if my watch could do it for me?

Daytime at his desk, smiling at a laptop. The Euhora home screen glows on the phone beside him: the painted bedroom, Wake by 7:00.

So I built Euhora.

I set just two things:

Sleep8 hours

Up by, at the latest7:00 AM

His finger taps Start tonight on the watch.

I tapped Start tonight on my watch,

Back in bed, the phone lies face down on the nightstand.

and turned my phone face down.

Awake in bed, he glances toward the nightstand out of habit.

I was still awake.

But this time, there was nothing to recalculate.

Asleep at last.
Morning. Two gentle buzzes at his wrist.
He opens his eyes, looks at his watch and smiles.
Euhora on the nightstand: the watch and the phone in the morning sun.

My watch estimated I fell asleep at 10:20.

Euhora counted eight hours from there: 6:20.

Six twenty. A gentle buzz on my wrist,

and I never once checked the clock.

If I’d fallen asleep at 11:30,

eight hours would mean 7:30.

Seven o’clock still wins.

Alarm = the earlier of
sleep onset + 8 h or 7:00 AM

Sleep onset is an estimate. The latest time can shorten your sleep.

Euhora

Sleep without stress.

Coming soon · by Myrikos

A man sleeps peacefully under a patchwork quilt, the bedside lamp still glowing. His watch is on his wrist; his phone lies on the nightstand.

Euhora · Coming soon

Sleep without stress.

An alarm for Apple Watch that counts from the moment you fall asleep. Set how long you want to sleep and the latest you can get up. No bedtime math, no checking the clock.

Watch the film · 2:15How it works

The plan

Evening. In green pajamas, he sits in an armchair by a warm lamp, smiling at his phone.

One night, before Euhora

Tonight, I was finally going to do it right.

His hand writes the plan on paper: 9:00 PM to 5:00 AM, 8 hours, with a check mark.

Asleep by nine, up at five.

Eight hours. Perfect.

9:00 PM. He lies in bed under the quilt, the lamp still on, the moon in the window.

Good night, new me.

Closer: his eyes are closed.

Okay. Sleep.

The night

Still awake in the dark. A crayon alarm clock and a question mark float above him.

…Still awake. What time is it?

It’s fine. Plenty of time.

…Right?

A worried close-up. His eyes slide toward the nightstand.

Just one quick look.

His hand holds the phone. Lock screen: 9:20 PM, alarm 5:00 AM.

9:20 PM

Nine twenty already.

Sleep. Right now.

Still not asleep? I have to be up at five…

…is that enough?

The alarm list: moved to 6:00 AM, Alarm in 8 hours. A thought cloud: 10:00 PM to 6:00 AM equals 8 hours.

10:00 PM

Ten o’clock. Up at five, that’s seven hours.

Only seven!

Forget it. I’ll move the alarm to six.

Eight hours again…

if I fell asleep right now.

The lock screen now reads 12:00 AM, alarm 7:00 AM.

Ten thirty…

…six thirty.

Eleven…

…seven.

Midnight?!

He closes his eyes in a long sigh. The phone on his chest goes dark.

…I give up.

The night’s numbers cover the wall: 9:20 PM, 5:00 AM?, 6:00 AM struck out, 7h, 10:30 PM, = 8h, 7:00 AM, 12:00 AM, and Why am I still awake?

The more minutes I counted,

the more awake I felt.

Morning

Morning light. He sits on the edge of the bed, exhausted.

Morning came.

I’d spent the whole night doing math…

…instead of sleeping.

A crayon thought cloud appears: a watch showing 8h?

What if I didn’t have to do the math?

What if my watch could do it for me?

Euhora

Daytime at his desk, smiling at a laptop. The Euhora home screen glows on the phone beside him: the painted bedroom, Wake by 7:00.

So I built Euhora.

The Euhora home screen: Wake by 7:00, 8 h of sleep, Tonight starts from your watch.

I set just two things:

Sleep8 hours

Up by, at the latest7:00 AM

His finger taps Start tonight on the watch.

I tapped Start tonight on my watch,

Back in bed, the phone lies face down on the nightstand.

and turned my phone face down.

Out of habit the numbers come back: 6? 7? 8? 9. This time they fall apart and drift away.

I was still awake.

But this time, there was nothing to recalculate.

The rule

Asleep. A card from the film: estimated sleep onset 10:20 PM, plus 8 hours, 6:20 AM. Wake by, at the latest, 7:00 AM.

My watch estimated I fell asleep at 10:20.

Euhora counted eight hours from there: 6:20.

Morning. He looks at his watch and smiles.

Six twenty. A gentle buzz on my wrist,

and I never once checked the clock.

A card from the film: 11:30 PM plus 8 hours would be 7:30 AM, struck out; the alarm is 7:00 AM. Your latest wake-up time takes priority.

If I’d fallen asleep at 11:30,

eight hours would mean 7:30.

Seven o’clock still wins.

Alarm = the earlier of
sleep onset + 8 h or 7:00 AM

Sleep onset is an estimate. The latest time can shorten your sleep.

Euhora

Sleep without stress.

Coming soon · by Myrikos

How it works

Less bedtime arithmetic.

Choose a sleep goal and the latest time you can get up, then start the night from your watch. The alarm is set from the moment your watch estimates you fell asleep, and never goes past your latest time.

Try the rule

For iPhone and Apple Watch. Release details are being confirmed.

Euhora on Apple Watch: Good night, 7:00 AM at the latest · 8 h, and a Start tonight button.
Euhora on iPhone: the home screen reads Wake by 7:00, 8 h of sleep, Tonight starts from your watch.
Screens from the current test build. The interface may change.

  1. Choose your night

    A sleep goal, like 8 hours, and the latest time you need to be up, like 7:00 AM. That’s all you set.

  2. Start from your watch

    Tap Start tonight on Apple Watch. Your phone can stay face down.

  3. Wake on plan

    A gentle buzz on your wrist when your sleep goal is reached, or at your latest time, whichever comes first.

One rule, two kinds of night

Room to sleep. A time to be up.

The sleep goal is a target. The latest wake-up time is a limit. Whichever comes first sets the alarm.

Alarm = the earlier of estimated sleep onset + sleep goal, or your latest wake-up time.

The two nights in the film
Fell asleep+ 8 h would beAlarmSleep window
10:20 PM6:20 AM6:20 AM8 h
11:30 PM7:30 AM7:00 AM7 h 30 m

The examples explain the calculation, not your night: sleep onset is an estimate.

10:20 PM
Sleep goal
8 h
Latest
7:00 AM
Alarm
6:20 AM
Sleep window
8 h

Eight hours from 10:20 PM is 6:20 AM, before 7:00 AM, so the alarm is 6:20 AM.

Good to know

A few things, before bedtime.

  • Why not a fixed alarm?

    If you always need to be up at one time, a regular alarm may be all you need. Euhora is for nights with some room: you aim for a sleep goal without automatically sleeping until the latest minute.

  • It estimates.

    Sleep onset is an estimate from your watch. It can differ from when you actually fell asleep, and waking in the night shortens real sleep. The times in the story show the rule, not detection accuracy.

  • It’s an alarm, not a treatment.

    Euhora doesn’t pick a sleep stage and isn’t a treatment for anxiety or any sleep condition. The character’s night is a story, not a promise about how you will sleep.

The film · 2:15

One night, before Euhora.

Play the film

Narration voice: Kokoro-82M (Apache 2.0). Music: “Almost in F” by Kevin MacLeod (incompetech.com), licensed under CC BY 4.0. Fonts: Nunito and Patrick Hand (SIL Open Font License). English captions included.