buncha/health & fitness/sleep-debt

Sleep Debt Tracker

Log how many hours you slept each of the past 7 nights. Set your target (the science says 7–9 for most adults). The tool shows how much you're behind or ahead, day by day. Saved in your browser — nothing leaves the device.

Awaiting entries

0/7 nights logged

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Log a couple of nights to see your debt

Use the sliders or type the hours next to each day. We only save the numbers in your browser.

Target sleep per night

8.0 hours

6h7h8h9h10h

National Sleep Foundation recommends 7–9 hours for adults, 8–10 for teens, 9–11 for school-age children.

7-day chart

Wed

Thu

Fri

Sat

Sun

Mon

Tue

How much did you sleep each night?

Wed · Jun 3

Thu · Jun 4

Fri · Jun 5

Sat · Jun 6

Sun · Jun 7

Mon · Jun 8

Tue · Jun 9

TODAY

Entries are saved in your browser's localStorage — never uploaded. Clearing the browser data clears the log. The numbers are a tracking tool, not medical advice; if you regularly run a 10+ hour deficit despite trying to sleep, talk to a doctor.

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About Sleep Debt Tracker

Track your sleep deficit over the past 7 nights. Set your target (most adults need 7-9 hours), log how much you actually slept, see the running total and a 7-day chart with day-by-day bars. Verdict colour-coded from "ahead of target" to "sleep-deprived" with practical recovery hints.

Everything happens on your device. Close the tab and it's gone.