Hello WHOOP Team,
I believe I may have identified either a bug or an edge case in the current sleep
algorithm that affects users who intentionally combine shorter nighttime sleep with
planned naps.
I have a question regarding the calculation of Sleep Need, Sleep Debt, Recovery, and
WHOOP Age in my specific use case.
Summary
I intentionally use planned naps as a core part of my recovery strategy. However, they
do not appear to be consistently reflected in Sleep Need, Sleep Debt, Recovery, or
WHOOP Age, even though they clearly provide a physiological recovery benefit.
Example
For the night of July 13-14, 2026, WHOOP reports:
• Sleep Need: 9:33 h
• Nighttime Sleep: 4:51 h
• Sleep Performance: 51%
• Sleep Debt: 2:07:48 h
On the same day I also took a total of 2:19 h of naps. According to the published
formula:
Sleep Need = Baseline + Strain + Previous Sleep Debt − Naps
If these naps were fully included, my Sleep Need should be approximately 7:10-7:15
hours, with a correspondingly lower Sleep Debt.
Despite this, the detailed calculation shows “Naps: 0 seconds”, even though my naps
were successfully recorded.
Impact
1. Sleep Need and Sleep Debt appear consistently too high.
2. My Recovery status (red/yellow/green) does not accurately reflect my true recovery.
3. My WHOOP Age tends to be worse because my total sleep (night sleep + naps) is not
fully taken into account.
My Use Case
For many years I have consistently slept about 6 hours per night. I intentionally
complement this with planned naps to manage sleep debt and recovery. My goal is for
WHOOP to model this recovery strategy correctly.
My Request
1. Please investigate why my naps appear as “0 seconds” in the Sleep Need and Sleep
Debt calculation.
2. Please confirm exactly how naps currently affect Sleep Need, Sleep Debt, Recovery,
and WHOOP Age / Healthspan, and whether there are any known limitations or bugs for
nighttime.