Nocturne is an AI sleep coach that learns your nights, then writes tonight’s plan: the wind-down, the soundscape, the alarm. Our users fall asleep 18 minutes faster by week eight.
4.8 · 21k ratings, mostly written before 7 a.m.
You’ve tried the magnesium, the mouth tape, the 9 p.m. phone jail. Nocturne starts somewhere else: with your actual nights. It notices the flat white you had at 15:20, the run you squeezed in after work, the meeting that ran late, and quietly rewrites tonight. A wind-down that fits your evening. Sound that listens back. An alarm that waits for you to be ready.
Not another sleep lecture streak to protect supplement stack Just tonight, planned properly.
Works with the phone on your nightstand, and syncs with
02 Tonight’s forecast
At 18:00 Nocturne looks at how you slept, how today went and what’s on tomorrow, then drafts tonight. It’s there the moment you open the app. It’s usually right. When it isn’t, it learns.
One number, then one sentence on why. “86: deep sleep came early and stayed.”
Awake, REM, light and deep, from your phone on the mattress or any watch or ring you already wear.
Thursday · 24 Sep
Good evening, Maren.
Tonight’s window
Lights down 22:50 · asleep by 23:05
Flat white at 15:20, so wind-down starts 15 min earlier.
A bedtime that moves with your day: the late coffee, the 20:00 run, tomorrow’s 07:30 flight.
A soundscape that thins as your breathing slows, and goes quiet once you’re in deep sleep.
03 How it works
Nocturne reads your afternoon, the 15:20 flat white and the late call included, and times a wind-down that starts where you actually are. Lamps warm, screens go amber, then four minutes of breathing. Nothing to remember. The reminders arrive when they’re needed.
Rain far away, a low brown hum, a night train you’ll never catch. The mix follows your breathing, thins out as it slows, and goes silent in deep sleep. Stir at 03:12 and it returns, quietly, before you’ve noticed you were awake.
Set a window, not a time. Nocturne watches for your lightest moment inside it, raises a sunrise on your screen and lets birdsong in at a whisper. Worst case, it rings at your hard stop. Never late. Just less startled.
04 The science
Eight weeks, 1,284 people, 91,406 nights. Each person was compared with their own first two weeks, the most honest control group we could find.
18minutes faster
Median time to fall asleep went from 32 minutes to 14 by week eight.
“The biggest gains didn’t come from earlier bedtimes. They came from moving the last coffee and the last bright screen.”
+34min a night
Mostly won back in the last 90 minutes, where alarms usually cut in.
37%fewer
Awakenings over five minutes, between 02:00 and 05:00.
71%
said waking up felt noticeably easier by week three.
Method. Nocturne Sleep Study, February–April 2026, run by our in-house research team. Adults used Nocturne+ for eight weeks with a phone or wearable, plus a two-question morning diary. Results compare each participant with their own two-week baseline; the study was not randomised or blinded, and figures are medians unless noted. Nocturne is a wellness app, not a medical device.
Full methodology & data dictionary
Read the study notes
05 Dream journal
Entries from the in-app journal, shared with permission. Names shortened, the 6 a.m. honesty kept.
Fell asleep before the rain track looped once. On a Sunday. Before a Monday with a board meeting in it.
It noticed I sleep badly after late padel. It didn’t tell me to stop. It just started my wind-down earlier on Tuesdays. Rude how well that works.
The alarm waited nine minutes for light sleep. I woke up like a person, not a fire drill.
Went from night shifts to days in March. Nocturne treated it like jet lag and walked me back an hour a week. My body finally believes me.
I still drink three coffees. Just not the 4 p.m. one. Twenty-two minutes faster to sleep, according to the graph I now check every morning.
Average journal streak 23 nights · nobody is counting but you
06 Membership
Fourteen nights of Nocturne+ on us. No card to start; you’ll decide in the morning.
The basics, done beautifully. For curious sleepers.
$0forever
No card, no trial clock.
Upgrade any night. Your history comes with you.
The coach. A plan rewritten every evening, from your own nights.
$8.99/ month
Billed monthly. Cancel in two taps.
Cancel before night 14 and you’re never charged.
07 FAQ
Still awake? Write to hello@nocturne.sleep. A human replies by breakfast.
No. Put your phone on the mattress and Nocturne uses motion, and sound if you allow it, to estimate your stages. A watch or ring sharpens the picture and syncs in a minute, but you can start tonight without one.
Every evening it looks at your last 14 nights, how today went (caffeine, workouts, late screens, your calendar if you let it) and what has worked for you before. Then it writes tonight’s plan: when to start winding down, which soundscape, and your wake window. It gets more specific every week.
No. Nocturne is a wellness coach, not a medical device. If you snore loudly, stop breathing at night or have struggled to sleep for more than three months, please see a clinician. Nocturne+ can export a clean two-week summary to bring along.
Most processing happens on your phone. What syncs is encrypted, never sold and never used for ads. Delete it from Settings → Privacy and it’s gone from our servers within 30 days, backups included.
Never. You set a window, say 06:25–06:55. Nocturne wakes you at your lightest moment inside it, and at 06:55 on the dot if that moment doesn’t come.
Partner mode separates your breathing and movement from theirs, and the alarm can buzz your watch only. Your plan stays yours; their sleep stays theirs.
From your phone’s subscription settings, in two taps. Cancel during your 14 free nights and you’re never charged, not even a cent for the soundscapes you liked.
08 First light
Download Nocturne, answer four questions about your evenings, and get your first plan before bed. The first 14 nights of Nocturne+ are on us.