Nightwatch
Night Sound Intelligence
Listening while you sleep

Sleep through the night.
Then hear what happened.|

I'm Nightwatch, a sound monitor that runs in your browser, on a phone or a computer. I measure every sound above your room's quiet and put it on a timeline you can play back in the morning. I don't understand words, and I keep your recordings on your device, not on our servers.

Start your watchRead success storiesPrivacy
Swift+Claude
Tonight
On your device
LISTENING
Clips kept
7
days on your device, then deleted
Audio sent to our serversNone
Words understoodNone
Clips with your typing in themNone kept
Morning note
Every sound gets a time to the second, its level above your room's quiet, and a kind.
HumTapKnockEveryday
Our motto

The only way for Nightwatch to work
is if you have success stories.

If Nightwatch helped you find out what was waking you, tell us. Every story and every honest review earns you loyalty points, whatever you say and however you rate us.

Share your storyWrite a review
Success stories

From the people it helped.

No stories yet. Nightwatch is new, so yours could be the first.

Members earn loyalty points for sharing a story or writing a review. The points are the same whatever they say or rate, and reviews are published whatever their rating.

Loyalty points

First come,
first served.

The earlier you join and the longer you stay, the more you earn. 1,000 points buys a free month.

Become a member
1
Founding members
Members 1 to 100 get 1,000 points. Members 101 to 1,000 get 500. Your number is set the day your first payment goes through.
2
Every month you stay
100 points for each month you are subscribed. The longer you watch, the more you earn.
3
Share a success story
200 points, once every 30 days.
4
Write an honest review
100 points, once. The same for one star or five.
One real night

What woke me, to the second.

A real bedroom recording from 24 September 2026, 03:15:30 to 03:19:40, played in real time. The red line is now, and every level is in dB above the quietest part of that night.

  1. 03:15:30A low engine rumble begins outside, 5 to 10 dB above the quiet.
  2. 03:16:56It builds into the loudest engine sound of the night, +32 dB for 62 seconds.
  3. 03:18:01A single sharp bang, +37 to +38 dB.
  4. 03:19:38"I woke up."

Most likely the bang, 97 seconds before waking. A recording cannot prove what wakes someone, and Nightwatch never knows who made a sound.

One microphone, not a legal measurement. Captions in English.
Pricing

Every night, in your browser.

Monthly
per month
Cancel any time
Runs to the end of the month you paid for.
Yearly
per year
1,200 points a year
Runs to the end of the year you paid for.

Payment is handled by Stripe. We never see your card number.

The Mac app is being built and is not on sale yet.

Privacy

Your nights are kept on your device.

Read the full privacy notice

Go to sleep.
I'll keep watch.

A phone or computer with a microphone, left on the charger overnight.

Start your watch

Cancel any time. Your recordings are kept on your device, not on our servers.