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The Hidden Debt
Sleep Debt Calculator
Sleep debt compounds like credit card interest — and it's costing you more than you think.
Hours slept, last 7 nights
Mon
6h
Tue
7h
Wed
5h
Thu
8h
Fri
6h
Sat
7h
Sun
6h
Dan Alchemy · Sleep Ledger
Week ending today
OVERDRAWN
Mon: 6h slept-2.0h
Tue: 7h slept-1.0h
Wed: 5h slept-3.0h
Thu: 8h slept+0.0h
Fri: 6h slept-2.0h
Sat: 7h slept-1.0h
Sun: 6h slept-2.0h
BALANCE-11h
-4.4
IQ points
-20%
Memory retention
+88ms
Reaction lag
Accumulated Sleep Debt
11hours
Severe debt. You need a recovery weekend.
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