Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Strategic Nap Timing Calculator
Calculates the ideal nap duration in minutes based on your sleep goal and how much sleep debt you're carrying. Use it when planning a midday rest to boost alertness or aid physical recovery.
Power Nap Productivity Calculator
Estimates your post-nap productivity level (0β95 scale) based on current alertness, nap duration, and the time of day you plan to nap. Use it to decide whether a short nap is worth taking before an important task.
Post-Nap Alertness Level
75 %
65-84% is the target range for a 10-20 minute power nap, which studies link to a 34% improvement in performance. The example case (50% + 20-min nap) lands here at 75%.
This score is the formula's projected alertness on a 0-95% scale, capped at 95%; thresholds reflect that a 10-20 min power nap typically restores function without sleep inertia.
Key differences
| Strategic Nap Timing Calculator | Power Nap Productivity Calculator | |
|---|---|---|
| Category | Sleep | Sleep |
| Inputs required | 2 | 3 |
| Result | Optimal Nap Duration (minutes) | Post-Nap Alertness Level (%) |
| What it does | Calculates the ideal nap duration in minutes based on your sleep goal and how much sleep debt you're carrying. Use it when planning a midday rest to boost alertness or aid physical recovery. | Estimates your post-nap productivity level (0β95 scale) based on current alertness, nap duration, and the time of day you plan to nap. Use it to decide whether a short nap is worth taking before an important task. |