😴SleepFree Tool
Sleep Debt Calculator
Enter your sleep hours for the past week to find out how much sleep debt you've accumulated — and what it's actually costing you.
How many hours did you sleep each night last week?
Mondayhrs
Tuesdayhrs
Wednesdayhrs
Thursdayhrs
Fridayhrs
Saturdayhrs
Sundayhrs
How this works
- →Sleep debt is the difference between how much sleep your body needs and how much it actually gets. It accumulates over days and weeks.
- →Recovery happens at roughly 1 extra hour per night above your baseline. You can't fully recover a week of debt in one long weekend — consistent extra sleep is required.
- →Individual need varies — most adults need 7–9 hours, but your personal ideal within that range is real and worth knowing.