๐Ÿ˜ด Sleep Debt Calculator

Total sleep debt6 hours
Total actual sleep51 hours
Total recommended sleep56 hours
Surplus sleep1 hours

This is only a general guideline. If you have ongoing sleep concerns, consult a doctor.

Enter your recommended sleep target and your actual sleep hours for the last 7 days to calculate your total accumulated "sleep debt" โ€” the sum of your shortfalls. A quick way to visualize how much sleep loss has built up.

How to use

  1. Enter your personal recommended sleep target (in hours).
  2. Enter your actual sleep hours for each of the last 7 days.
  3. Your total sleep debt โ€” the sum of shortfalls on days you slept less than your target โ€” is calculated automatically.

FAQ

What does "sleep debt" mean?

It's the idea that when you consistently sleep less than your recommended target, the shortfall accumulates like a debt over time. Built-up sleep debt is associated with daytime sleepiness and reduced concentration.

What should I set as my recommended sleep target?

For adults, roughly 7-9 hours per night is a commonly cited general guideline, but individual sleep needs vary. Use whatever amount leaves you feeling your best.

How are days where I overslept handled?

A day where you slept more than your target counts as zero debt for that day, and the excess is shown separately as "surplus" sleep. Keep in mind that oversleeping doesn't necessarily cancel out previously accumulated sleep debt in a simple 1:1 way.