Sleep Debt Calculator
Enter your own nightly target and actual sleep for each day. The calculator adds only the amount below that target.
Cumulative hours below your target
hours
Daily data
| Day | Actual hours | Hours below target |
|---|
A QUICK WALKTHROUGH
How to use this tool
- Your nightly target (hours)
- Actual sleep by day (hours)
- Calculate total shortfall
Cumulative hours below your target
Use your own target. Each value must be from 0 to 24 hours. This arithmetic tool does not set a universal health target, define medical sleep debt, diagnose a condition, or provide sleep advice.
Daily data
Enter your own nightly target and actual sleep for each day. The calculator adds only the amount below that target.
GOOD TO KNOW
Common questions
Cumulative hours below your target
Σ max(0, target − actual). This arithmetic tool does not set a universal health target, define medical sleep debt, diagnose a condition, or provide sleep advice.