Real time sleep coaching

Sleep starts when
you wake up.

Real time nudges so when you have time to sleep, your body is ready.

Get early access See how it works →
Works with your wearable
⌚ Apple Watch
💍 Oura Ring
💪 Whoop
🏃 Garmin
Live from Cadian
☀️ Get 10 min of sunlight now. Your clock needs anchoring.7:14 AM
☕ Last coffee by 1:30 PM. Half life keeps it active at bedtime.11:02 AM
🍽️ Finish eating by 8:15 PM. Late meals delay sleep onset.7:50 PM
🏃 Skip the hard workout tonight. Your HRV is 19% below baseline.4:31 PM
📱 Dim screens now. 3 hrs of blue light is delaying your melatonin.9:07 PM
🌡️ Cool your room to 67°F. Your body needs to drop temp to sleep.10:20 PM
🫁 Your sleep window opens at 11:12 PM. Start breathing down now.10:52 PM
☀️ Get 10 min of sunlight now. Your clock needs anchoring.7:14 AM
☕ Last coffee by 1:30 PM. Half life keeps it active at bedtime.11:02 AM
🍽️ Finish eating by 8:15 PM. Late meals delay sleep onset.7:50 PM
🏃 Skip the hard workout tonight. Your HRV is 19% below baseline.4:31 PM
📱 Dim screens now. 3 hrs of blue light is delaying your melatonin.9:07 PM
🌡️ Cool your room to 67°F. Your body needs to drop temp to sleep.10:20 PM
🫁 Your sleep window opens at 11:12 PM. Start breathing down now.10:52 PM
62%
of adults report trouble falling asleep
8PM
when most sleep mistakes are already made
6–10
personalized nudges Cadian sends you every day

The difference

Other apps score your sleep.
We prepare you for it.

Every other sleep app

"Your sleep score was 61. You got 5h 40m with poor deep sleep."

Cadian at 1:06 PM

"Cut caffeine now." Anything after 1:30 PM is still active at your bedtime.

A day with Cadian

Every nudge has
a reason.

☀️
You slept 5h 20m last night. Get outside now.
Morning light resets your clock. On low sleep days it matters twice as much.
7:08 AM
Sleep debt
☕
Caffeine cutoff is 1:24 PM today. Log your last coffee.
Based on your 11 PM sleep window. Anything after this will still be 27% active when you try to sleep.
1:09 PM
Hard cutoff
🏃
Your HRV dropped 22% today. Keep the workout easy.
Hard training on low HRV spikes cortisol for 4+ hours. You'd be wired at midnight.
4:38 PM
HRV low
🍽️
Finish eating in the next 20 minutes.
You ate late 3 of the last 4 nights. Each time your deep sleep dropped by 18 min.
8:02 PM
Your pattern
📱
4.2 hrs of screen exposure today. Dim everything now.
You're above your weekly average. Melatonin onset is likely already delayed by 30+ min.
9:07 PM
Above average
🌡️
Set your room to 67°F now, not at bedtime.
Takes 30–40 min to drop. If you wait until 11, you'll lie awake while it catches up.
10:19 PM
Prep now
🫁
Your window opens at 11:08 PM. That's 14 minutes.
HRV is recovering. Strain is processed. Body temp is dropping. Everything is aligned. Don't miss it.
10:54 PM
Window open

How it works

Watches all day.
Acts at the right moment.

01
🗓️

You set your window

Tell Cadian when you need to be asleep. Not a fixed bedtime, your actual schedule. Tonight it's 11 PM, tomorrow it's 1 AM. Cadian adjusts.

02
⌚

We read your body

Syncs with Apple Watch, Oura, Whoop or Garmin. Tracks HRV, strain and sleep debt and works backward from your window to time every intervention.

03
📲

Sends the nudge

A notification at the exact moment it matters. Tap to log coffee or meals right from the alert. Two seconds of input, fully personalized output.

Early users

What people are
saying.

"I have an Oura ring and never knew what to actually do with the data. Cadian is what I was missing."

Marcus T.Startup founder, NYC

"The caffeine cutoff notification alone changed everything. I thought I was a bad sleeper. Turns out I was just caffeinating too late."

Priya S.ER nurse, rotating shifts

"Finally an app that works with my schedule instead of telling me to go to bed at 10 PM every night."

Jordan K.Pro athlete, irregular travel

Your 11 PM is
decided at 7 AM.

Join the waitlist. Sleep better starts now.