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Optimal Nap Duration

Result

Calculated result 720 Based on the values entered.
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Optimal Nap Duration — free online calculator.

Formula

20min (REM) | 90min (full cycle) | 120min (deep + REM)
  • Optimal Nap Duration calculates its result from Rem, Full Cycle, Deep. It uses the formula 20min (REM) | 90min (full cycle) | 120min (deep + REM). Change any input to recalculate the result instantly.
  • The main inputs are Rem, Full Cycle, Deep. Enter them in the units and format shown in the calculator.
  • Use the units, labels and assumptions shown beside each input so the formula is applied consistently.
  • Changing any input above recalculates the result with the same calculation engine used by this page.

Example: Optimal Nap Duration

Inputs
  • Rem: 2
  • Full Cycle: 3
  • Deep: 4

Using Rem = 2, Full Cycle = 3, Deep = 4, the calculated result is 720.

Sample result: Calculating…

Frequently asked questions

What does the Optimal Nap Duration calculate?

Optimal Nap Duration — free online calculator.

Which values should I enter?

Enter Rem, Full Cycle, Deep using the units and format shown beside each field.

What formula does this calculator use?

The calculator uses the following relationship: 20min (REM) | 90min (full cycle) | 120min (deep + REM).

Why might my result differ from another source?

Results can differ when another source uses different units, rounding rules, conventions or assumptions. Compare the inputs and definitions before comparing results.

Does the result update automatically?

Yes. Changing an input updates the result using the same calculation engine shown on this page.

Page information

Updated: October 7, 2026