Sleep Debt Calculator
Track your weekly sleep debt from daily sleep hours
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🔒 Everything runs 100% in your browser. Your files and input are never uploaded to any server.
Enter your target sleep hours and how much you actually slept each day of the week, and this tool automatically totals up your accumulated sleep debt. It's useful for anyone wondering whether fatigue or low energy is linked to insufficient sleep, and everything is calculated right in your browser with nothing sent to a server.
How to use
- Enter your daily recommended sleep target in hours.
- Fill in the actual hours you slept for each day from Monday to Sunday.
- See your total weekly sleep debt and a health status (Healthy / Mild / Severe) update instantly at the top.
- If your debt is high, use the status description to plan some catch-up sleep.
FAQ
- Does oversleeping on some days reduce my debt?
- No. This calculator only accumulates hours below your target as debt; sleeping more than your target does not offset it, following common medical guidance.
- Is my sleep data saved anywhere?
- No. All calculations happen locally in your browser and nothing is sent to or stored on a server.
- What level of sleep debt is considered risky?
- 0 hours of weekly debt is Healthy, 1-7 hours is Mild, and 8 hours or more is flagged as Severe.