One honest number. Measured against you.

Nightsong listens to your breathing and snoring, does the math right on your iPhone, and gives you one number every morning. Your audio never leaves the device.

Follow the night

0.1Honest

If you snored or your breathing was uneven, it tells you. If you didn't, it says so.

Same night, same number. Honest minutes, never a flattering guess, never a fake zero.

10:41 pm 38 min of snoring, marked in ember 6:12 am

Minutes of snoring and breathing steadiness roll up into the Somnus Index™, a 0 to 100 score you can watch move.

0.2The morning

And this is what you wake up to.

Your Somnus Index for the night, front and center. Under it, the honest details: how many minutes of snoring it heard, and how steady your breathing sounded. Every number is set against your own baseline, never a stranger's average.

The Nightsong Today screen: a Somnus Index of 75 and the word Steady over a dark espresso sky, above cards reading Breathing Varied, Snore Light, Sleep 4h 37m and Vitals, each read against your own baseline.

0.3Private

It listens all night. Your audio never leaves your phone.

  • The listening, the math, and the morning number all happen on the device.
  • Your recordings are never uploaded. There is no cloud copy of your audio. No server holds a night of your sound.
  • This site keeps the same spirit. No trackers, no pixels, nothing watching you read.
An iPhone glowing softly like a lantern on a wooden nightstand in a dark bedroom
The Nightsong All-Night Audio screen. The heading reads Hear your night, then These recordings never leave your phone, above three short clips from the night, each with a play button and waveform.

What we do and don't collect

  • On your phone, and only your phone: every recording, all the audio analysis, and your nightly Somnus Index.
  • What we do collect: if you join the waitlist or make an account, the details you give us, like your email, so we can reach you. Our Privacy Policy covers those.
  • The line that never moves: your sleep audio is never one of those things. It stays on the device, always.

0.4On-device by design

Ambient intelligence, kept on your phone.

The room reads the night, and nothing leaves the device.

0.5Your setup is yours

Whatever you already use, you own it here.

Using something already for your nights? Add it if you like. It lives on your phone, for your own record, and it never changes your number.

The Nightsong context and settings screen. The heading reads Your context and settings, anything you're using, you own this, above a list of options you can turn on for your own record, each kept on this phone only and never changing your number.

0.6Calm

You, measured against you.

One night is noise. A month is signal. Nightsong builds a baseline from your own nights and shows you the slope. A loud Tuesday never gets the last word.

your baseline a loud Tuesday back to your baseline in 2 nights 84
30 nights Somnus Index, 0 to 100

0.7

How it works

  1. Set your phone by the bed.

  2. Sleep like you always do.

  3. Wake to your Somnus Index.

  4. Watch your trend take shape.

No wearable required. Your phone is the sensor. If you wear a watch, it enriches the picture. It never gates it.

Nightsong is a wellness and longevity product from Somnus Technologies, Inc.

0.8Real nights, on real phones

Real nights, on real phones, today.

Thousands of hours of real overnight audio, analyzed entirely on the device. Testers across multiple states, every night. The engine is real, and it runs on your phone.

0.9Inside Nightsong

A gentle wake. A streak worth keeping.

The Nightsong Smart Wake screen: a gentle wake by 8:00, with a sound and haptic ramp, a hard stop at the time you set, and a 5 minute backup alarm.

Smart wake eases you up, always by the time you set.

The Nightsong Apple Watch screen at 7:28 in the morning: a Somnus Index of 84, labeled Steady, right around your recent nights, with three morning check-in buttons reading Groggy, OK and Rested.

If you wear an Apple Watch, it wakes you with a tap only you feel, not the person beside you. If you don't, the phone does it with a soft sound and haptic ramp.

The Nightsong Awards screen: 8 mornings in a row, with earned badges named First Light, Week One, Full Week, Steady Breathing, Scholar and 80 Club.

Mornings in a row become streaks and badges. Small wins that keep you coming back to your own baseline.

0.10Built for longevity

Nightsong is built for longevity.

Sleep is the most powerful lever you have, and how you breathe at night is where it starts.

Most sleep trackers are tuned for a young athlete. Nightsong is built for the stretch of life when steady nights matter most.

0.11Questions

Ask Nightsong.

Questions about your sleep, answered on your phone. Plain words in, plain answers out, grounded in your own nights. Like everything else Nightsong does, the conversation never leaves the device. And it is not a doctor: for anything medical, it points you to a real person.

The Ask Nightsong screen: a small ember waveform beside the words Your nights, your questions, answers stay on your phone, with suggested questions like How was my night and How was my snoring last night.

0.13

Be first in line.

Nightsong is coming. The waitlist is open now.

Join the waitlist for the beta. We'll email you when it's your turn. Read our Privacy Policy.

How your night stays yours

Deterministic at the core. Machine learning where it helps.

Nightsong's engine is deterministic: same night, same number, every time, with the reasons visible. Bounded machine-learning assists help it read the night, and the deterministic engine always has the final word. That is the opposite of a black box.

What leaves the phone, and what never does.

Your recordings never leave the device. Ever. With your consent, a small set of derived numbers, minutes of snoring, breathing steadiness, your score, travels to our own locked storage on Cloudflare. No name, no email, and no account handle rides with those numbers.

A pattern older than us.

This is the same separation pattern used in defense systems and hospital records: the sensitive layer never travels, and what travels carries no name, email, or account. We did not invent the pattern. We just refused to ship without it.

Questions people ask

Does Nightsong send my audio to the cloud?
No. Nightsong records, analyzes, and scores your night entirely on your iPhone. Your recordings are never uploaded and there is no cloud copy of your audio.
What is the Somnus Index?
The Somnus Index is a 0 to 100 nightly wellness score. It rolls up how many minutes of snoring Nightsong heard and how steady your breathing sounded, measured against your own baseline rather than a stranger's average.
Is Nightsong a medical device?
No. Nightsong is a wellness and longevity product from Somnus Technologies, Inc. It does not diagnose, treat, or provide medical advice.
What data does Nightsong collect?
Your recordings, audio analysis, and nightly Somnus Index stay on your phone only. If you join the waitlist or make an account, Nightsong collects the details you provide, such as your email. Your sleep audio is never collected.
How does Nightsong measure a night without sending it anywhere?
The listening, the math, and the morning number all happen on the device. Nightsong analyzes breathing and snoring locally on the iPhone and produces the Somnus Index without any server processing your audio.
When is Nightsong available?
Nightsong is opening a beta. You can join the waitlist now and Nightsong will email you when it is your turn.