CZPLEN
🌙 Free · No registration

😴 Sleep debt calculator

Find out how many hours of sleep you're missing and what it does to your health, performance and mood.

Enter your details

let
Enter age (6–100 years).
h
How many hours do you sleep on average per night (you can enter a decimal, e.g. 6.5) Enter valid number hours (0–24).
If you sleep irregularly, enter the average number of days

Your results

Recommended sleep
—
h / night
(for your age)
Your sleep
—
h / night
Debt per week
—
hours
Debt per year
—
hours
(at same tempu)

Your sleep vs. recommendations

0 h 2 h 4 h 6 h 8 h 10 h
Your sleep
Recommended

Sleep debt over time

Period Dluh

Health dopad

    💡 How to recover sleep debt

    Sleep debt cannot be fully "slept off" at once. The best strategy is gradually extending sleep by 15–30 minutes each day until you reach the recommended level. A regular sleep rhythm (same bedtime and wake time) is more important than the total number of hours.

    🌙

    Want to improve your sleep quality?

    The Sleep Guide by PoLKoR contains scientifically backed strategies for better sleep — from environment optimisation through sleep rituals to chronotypes and circadian rhythm.

    → Sleep guide
    📩

    Want more calculations and tips like this?

    I'll only send you things that are worth it — no spam. Unsubscribe anytime, one click.

    By subscribing you agree to processing of your email for sending updates. Data controller: Michal Kortus (PoLKoR). You can unsubscribe anytime. See privacy policy.