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Your data, not population averages.
Every insight calibrated to your personal baseline. 90+ nights of your wearable data build a sleep model that's uniquely yours.
Tomorrow depends on tonight.
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FORWARD-LOOKING
Tomorrow's readiness, not last night's grade.
Your Rested Score tells you what you can do today — front-load deep work, schedule recovery, plan around your energy curve.
YOUR CALL
Quantified choices, never prescriptions.
Two drinks tonight costs you 12 points tomorrow. A 10:30pm bedtime gains back 8. The data is clear. The decision is yours.
your call.
Data analysis · 444 nights
Wake time is the lever. Not bedtime.
Your circadian clock anchors to morning light, not when you go to sleep. A fixed wake time sets cortisol, clears adenosine, and gates evening melatonin onset — bedtime follows naturally. 13 years of sleep data makes this visible.
38%
HRV drop at the 7:30am cliff
80.9
Average score, 6:00–6:30am wake
60 min
Sweet-spot window before performance degrades
Wake windowScoreHRVElite nights
6:00–6:29amsweet spot
80.9
50.6ms
41%
6:30–6:59amsweet spot
80.5
51.1ms
41%
7:00–7:29am
77.8
47.1ms
21%
↓ cliff — HRV drops 38%, RHR jumps 8 bpm
7:30–7:59am
70.3
29.5ms
9%
8:00–8:29am
67.7
26ms
10%
9:30–9:59am
62.2
24.4ms
2%
Analysis based on 444 nights, 2020–2026 · Fitbit + Apple Health · Score = weighted composite of HRV recovery, sleep architecture, efficiency, and RHR delta
Built on13 years of sleep datathousands of nights trackedApple Health + Fitbit
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