8h 10m asleep, 14 wake-ups
100Scored on time asleep alone
73Tidestill: restfulness cost 20 pts
Scores that move for a reason.
A long night with 14 wake-ups isn't a perfect night. Your score says so, and shows which part cost the most.
Works with Fitbit and Pixel Watch
A sleep score that explains itself.
See how you slept, how recovered you are and what to do today, with every point explained. Free, read-only, and your data stays yours.
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- Free, no card
- Read-only
- Delete anytime
Today
Synced just nowLast night
Restfulness cost you 18 pts (usually 5), mostly time awake in the night.
A real screen on demo data. Tap any number.
A number is only useful if it tells you why.
Recovered. Aim for strain 10–14.
In bed by 22:40 for a full night
Advice for today, not just charts.
Recovery tells you whether to push or ease off. Tonight's bedtime comes from your sleep need and how hard you trained.
- Read-only
- Export any time
- Delete in one step
Your data, your call.
Read-only access. Download everything any time. Delete your account and it's gone, and we tell Google to cut our access.
Try it: build a night
Drag the sliders. The score, its five parts and the headline change exactly as they would for a real night. Tap a part to see how it's worked out.
Set up in about a minute
Three steps, then your scores are waiting.
Sign in with Google.
Use the Google account your watch syncs to.
Allow read-only access to sleep, activity and body measurements.
Google shows you each type of data, and you choose what to share.
See your scores in about a minute, built from up to 30 days of history.
New watch? Your first sleep score arrives the morning after your first night.
Everything your watch measures, in plain English
Four tabs, one answer each morning: how you are, and what to do about it.
Sleep
Know exactly what cost you points.
- Five parts, each worth its own points, adding up to your score.
- Your biggest cost, named in plain words every morning.
- Tonight's bedtime, adjusted for training and sleep debt.
Tonight
Wake at 06:45, need 7h 50m
20 min for yesterday's run and a short night
Recovery
Push or ease off? Your body has already decided.
- Compared with your own last four weeks, not anyone else's average.
- See which inputs raised it and which pulled it down.
- Early estimates from night 4, fully personal by night 14.
72Recovered
Strain
A range for today, not a guess.
- Built from your heart-rate reserve, so an easy day still counts.
- Today's range moves with your recovery.
- Every workout's share of the day, as it happens.
11.8Range 10–14
In range
A solid day. You landed inside the range your recovery set.
- +6.1
Morning run
42 min · average 151 bpm
- +1.2
Walk
35 min · average 104 bpm
Trends
Spot what's changing before you feel it.
- Your normal range drawn on every chart.
- Drag across any chart to read a single day.
- 31 metrics, from heart rate variability to bedtime.
Your watch app shows the numbers. This explains them.
Tidestill reads the same data your watch already collects and does more with it.
| Feature | Tidestill | Your watch app |
|---|---|---|
| Every point of your sleep score explained | Not shown | |
| Tonight's bedtime, adjusted for training and sleep debt | Not shown | |
| Recovery against your own 28-day normal | Partly | |
| Evening check-in shows what helps your sleep | Not shown | |
| Download all your data as a spreadsheet | Partly |
Your health data stays yours.
It's your sleep and your heart. You decide what we can read, and you can take it back.
Read the privacy policyRead-only
We can see your sleep, activity and body measurements. We can't change anything, and we can't see the rest of your Google account.
No ads, no selling, no sharing
Your data is used for one thing: working out and showing your scores.
Take it with you
Download everything as a spreadsheet or a full JSON file, any time, from Settings.
Gone when you say
Delete your account and every row is deleted, and we tell Google to stop sharing with us.
Questions
Anything else? Write to us and a person answers.
Which devices work?
Any Fitbit or Pixel Watch that syncs to a Google account through the Google Health app. Some trackers don't measure heart rate variability, blood oxygen or skin temperature. The app shows what yours reports and works with what it has.
I still sign in to Fitbit with a Fitbit account.
Move your Fitbit to a Google account in the Google Health app first, then come back.
How much does it cost?
Nothing. There's no paywall and no card needed.
What can the app see?
Only your sleep, activity and body measurements, read-only. It can't see your location, messages, contacts or anything else in your Google account, and it can't change anything.
Do you sell or share my data?
No. No ads, no selling, no sharing. We use it only to show you your scores.
Why do I see two Google screens?
The first signs you in. The second lets you choose exactly which health data to share.
How soon will I see scores?
If you've worn your watch for a week or more, straight away. New watch? Your first sleep score arrives the morning after your first night, and recovery after 4 nights.
Is this medical advice?
No. It's a wellness tool, not a medical device. Talk to a doctor about health concerns.
How do I delete everything?
Settings, then Delete account. It's instant, and we revoke our Google access.
Why the name Tidestill?
It's named for the still water between tides, the calm before the sea turns. That's when your body recovers: in the still between one effort and the next.
Last night already happened. See what it scored.
Every day starts the night before.
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