Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Sleep
Sleep Efficiency Calculator
Calculate your sleep efficiency percentage — the ratio of actual sleep to time spent in bed — adjusted for night wakings and how long it takes you to fall asleep. Use it to assess whether poor sleep quality, not just duration, is the issue.
Fill in the required fields to see your result.
Sleep
Shift Work Sleep Calculator
Plan your sleep window around rotating or night shifts by accounting for shift times, commute, and adjustment buffers. Use it when your schedule changes to find the exact bedtime that protects your minimum sleep hours.
Fill in the required fields to see your result.
Key differences
| Sleep Efficiency Calculator | Shift Work Sleep Calculator | |
|---|---|---|
| Category | Sleep | Sleep |
| Inputs required | 4 | 3 |
| Result | Sleep Efficiency Score (%) | Total Recovery Time Needed (minutes) |
| What it does | Calculate your sleep efficiency percentage — the ratio of actual sleep to time spent in bed — adjusted for night wakings and how long it takes you to fall asleep. Use it to assess whether poor sleep quality, not just duration, is the issue. | Plan your sleep window around rotating or night shifts by accounting for shift times, commute, and adjustment buffers. Use it when your schedule changes to find the exact bedtime that protects your minimum sleep hours. |