Sömnskuldsberäknare
Find out how much sleep you’re missing
Granskad av Patient infomatics teamFörfattad av Patient infomatics teamUrsprungligen publicerad 8 jul 2025
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This tool is designed for general guidance and awareness. If you’re experiencing ongoing sleep issues or extreme fatigue, speak to a healthcare professional.
Överblick
Sleep debt is when you don't get enough sleep over time.
It can cause tiredness, poor concentration, and lower immunity.
Most adults need 7 to 9 hours of sleep each night.
You can reduce sleep debt by improving your sleep habits.
I den här artikeln:
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What is sleep debt?
Sleep debt is a cumulative shortfall in the amount of rest your body needs to function at its best. Whether you’re staying up late, waking frequently, or just not sleeping long enough, the lost hours don’t simply disappear - they build up, leading to fatigue, reduced focus, lower immunity, and even long-term health risks.
Most adults need around 7 to 9 hours of sleep per night. If you regularly fall short, this calculator can help you estimate how much sleep debt you've accumulated over the past seven days - and what you can do to recover. While you can’t always repay every lost hour, improving your sleep habits and prioritising rest can make a big difference to how you feel day to day.
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Vanliga frågor
What are the common signs that I might have sleep debt?
Sleep debt can manifest as fatigue and reduced focus. Over time, it can also weaken your immune system and contribute to long-term health risks.
How do staying up late and waking frequently contribute to sleep debt?
Both staying up late and waking frequently reduce the total amount of sleep you get each night. When these lost hours accumulate, they create a shortfall in the rest your body needs, leading to sleep debt.
Can every hour of sleep debt be repaid?
While it's not always possible to repay every single lost hour of sleep, improving your sleep habits and making rest a priority can significantly improve how you feel on a daily basis, even if you can't completely erase all accumulated debt.
Does sleep debt only affect how tired I feel?
No, sleep debt affects more than just how tired you feel. It can lead to reduced focus, a weakened immune system, and an increased risk of long-term health problems.
If I only miss a little sleep, does it still count as sleep debt?
Yes, even small shortfalls in the amount of sleep your body needs can build up. Sleep debt is a cumulative shortfall, meaning that even if you're not sleeping long enough by a small amount each night, these lost hours accumulate over time.
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Patientinformatikteamet
The Patient.info Informatics Team ensures our medical content and tools are accurate, evidence-based, and aligned with trusted NHS and NICE guidance.
Om recensentenVisa fullständig biografi
Patientinformatikteamet
The Patient.info Informatics Team ensures our medical content and tools are accurate, evidence-based, and aligned with trusted NHS and NICE guidance.
Artikelhistorik
Informationen på denna sida är skriven och granskad av kvalificerade kliniker.
8 jul 2025 | Ursprungligen publicerad
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