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Free tool
Sleep Debt Calculator
Sleep debt builds quietly. Adding up the last week usually shows a bigger number than it feels like day to day.
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How to use this
- 1Set your target hours per night — 8 is a reasonable default.
- 2Fill in what you actually slept for as many of the last 7 nights as you can.
- 3Leave any night blank if you don't remember it — the total just adjusts.
Sleep is one of the two numbers your Work Sharp morning check-in asks for — the protocol uses it every day to decide how hard to push you, not just to track it.
See the full protocol →