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Sleep Debt Calculator

Have you heard of Sleep Debt? Use our calculator to quickly see how much sleep debt you've accumulated and take steps to pay it off.
Last Updated on Sep 12, 2024

Calculate Your Sleep Debt

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Sleep debt builds when you consistently get less sleep than your body needs. Imagine instead of the 8 to 9 hours of sleep that you need (or a total of 56-63 hours per week), you only catch 6 hours those missing 2 hours each night add up fast. By the end of the week, you could be looking at a whopping 14 hours of sleep debt!

'Sleep is the single most effective thing we can do to reset our brain and body health each day' -Matthew Walker.

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How do you calculate your sleep debt?

To find out how much you owe your body, add up the hours you’ve slept over the past week and compare it to the recommended 7-9 hours per night. The difference between what you should have gotten and what you did get is your sleep debt(1)!

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What Happens if You Are in Sleep Debt?

Chronic sleep deprivation has serious health implications. Just a few days of insufficient sleep can lead to concentration issues, increased blood pressure, and a weakened immune system (2).

Long-term sleep debt is linked to obesity, depression, type 2 diabetes, and heart disease. . Adults sleeping less than 7 hours per night are more likely to smoke, abuse alcohol, or be physically inactive. There are also socio-economic costs, such as reduced productivity and workplace accidents (3).

Recovering from Sleep Debt

There's NO quick fix for sleep debt. Recovery depends on the extent of your sleep deprivation. Sleeping one extra night to compensate for the lost sleep will not improve your sleep health or help you recover from sleep debt. Make it consistent and get adequate sleep for several nights to overcome sleep deprivation (4).
  1. Establish a Regular Sleep Schedule: Go to bed and wake up at the same time every day, even on weekends. This helps regulate your body's internal clock. The Harvard Medical School suggests that extending your sleep for one or two hours every night will help in recovering short-term sleep debt (5).
  2. Improve your Sleep Hygiene: Create a sleep-friendly environment by keeping your bedroom cool, dark, and quiet. Avoid caffeine, nicotine, and electronics like television and mobile phones before bedtime.
  3. Limit Naps: A short nap for 10 to 20 minutes and weekend sleep can help you overcome the lost sleep. Longer naps can lead to grogginess and disrupt nighttime sleep.
Napping earlier in the morning is better, avoiding late afternoon naps to prevent interference with nighttime sleep. Full recovery from sleep debt will take a longer time and it is advisable to consult with a doctor to take necessary action (4).

When to See a Doctor?

If you consistently struggle to get adequate sleep, you might have a sleep disorder. Common sleep disorders such as insomnia, sleep apnea, and restless leg syndrome could be the cause.
  1. Insomnia is when you try to sleep but face difficulty in falling or staying asleep, or waking up too early and unable to sleep again (6).
  2. Sleep apnea is a serious condition when you are unable to breathe during your sleep, making you stay awake most of the time (7).
  3. Restless leg syndrome is a sudden urge to move your legs in sleep (8).
  4. Other causes can be work shifts, alcohol abuse, and poor sleep hygiene. If sleep debt is affecting your daily life, see a doctor. They can help or refer you to a sleep medicine specialist(9).
Read more about Sleep Disorders
If you believe you may be experiencing any sleep disorder, it is important to consult a sleep medicine specialist. You can also find qualified doctors in the Doctor’s Directory available on Medindia.

What can lead to Sleep Debt?

  1. Alcohol Consumption and Sleep Debt: Alcohol intake before bed will have detrimental effects on sleep and health (10).
  2. Snoring Associated with Obstructive Sleep Apnea (OSA): It can cause poor-quality sleep and lead to heart disease, diabetes, and high blood pressure (11).
  3. Sleeping with Lights on: This certainly can affect your circadian rhythm and keep waking you up (12).
  4. Old age and Sleep Requirement: Sleep needs don’t decrease with age; older adults still require 7 to 9 hours each night (13)
  5. Falling Asleep Anytime and Anywhere: You are chronically sleep-deprived if you can fall asleep anywhere and anytime (14).
  6. Napping and Sleep Debt: Regular daytime napping can disrupt nighttime sleep, increase risks of heart disease and metabolic problems, and may be associated with greater overall health risks (15).
  7. Does Dreaming add to Sleep Debt: Dreaming can occur at any stage of your sleep cycle, while dreaming during non-rapid eye movement (NREM) sleep is less common(16). Dreaming does not cause any problems with sleep unless dreams turn into nightmares.
  8. Lying in Bed with your Eyes Closed: This does not provide the same effect as actual sleep (17).
  9. Night-time vs Daytime Sleep: Nighttime is the ideal period of sleep as your body follows the circadian rhythm (18).
  10. Watching Television or Mobile Phone before Bed: This will delay your sleep and isn't a good way to relax and add to your sleep debt (19).
Disclaimer : The Sleep Debt Calculator is designed to provide an estimate of your potential sleep debt based on the information you provide. It is not intended to diagnose, treat, or replace professional medical advice. Sleep needs vary from person to person, and chronic sleep deprivation can have serious health implications. If you are experiencing persistent sleep issues, we recommend consulting with a healthcare professional or sleep specialist for personalized advice and treatment. The results from this calculator should be used as a general guide only.

FAQs on Sleep Debt

1. Which doctor should I consult if I’m sleep-deprived or have sleep debt as per the calculator?

Consult a sleep specialist if you are experiencing sleep deprivation or sleep debt. They can help diagnose and treat sleep disorders that may be contributing to your sleep problems. You can also find a doctor from the Medindia’s doctor directory.

2. How do I know if I'm in sleep debt?

One simple way to understand if you have sleep debt is if on waking up in the morning you feel that you did not have enough sleep and if you are in the habit of sleeping longer on the weekends or when you have a day off. You may use Medindia’s sleep debt calculator to know the level of sleep you have lost (20).

3.  What steps can I take to improve my sleep and avoid sleep debt?

To improve your sleep and avoid sleep debt, stick to a consistent sleep schedule and make your bedroom comfortable and dark. Avoid screens and caffeine before bed (21).

4. How to overcome Chronic Sleep Debt?

If you are suffering from chronic sleep debt, it will take several weeks of consistent sleep habits to fully recover. If sleep issues persist despite these efforts, it may be beneficial to consult a healthcare professional to rule out underlying sleep disorders. Some doctors specialize in sleep medicine, do search for them in your city and consult them.

5. Are there foods that can help overcome sleep debt?

Yes, melatonin-rich foods (such as cherries, and malted milk) can promote better sleep and avoid sleep debt. Avoid heavy meals, caffeine, and alcohol close to bedtime (22).

6.  What is sleep apnea, and how does it contribute to sleep debt?

Sleep apnea is a disorder where breathing repeatedly stops and starts during sleep. The quality of sleep is poor and can lead to sleep debt and daytime lethargy and tiredness. It can be treated with lifestyle changes, continuous positive airway pressure (CPAP) therapy, or positional therapy (23).

7. What is circadian rhythm, and how does it cause sleep debt?

Circadian rhythm is the body’s internal clock that regulates the sleep-wake cycle. Disruptions to this rhythm, like shift work, can negatively impact sleep quality and lead to sleep debt (24).

8. Is exercise helpful in reducing sleep debt?

Regular exercise can significantly enhance sleep quality by regulating circadian rhythms and reducing stress, which helps in recovering from sleep debt (25).

9. Can sleep debt lead to long-term health issues?

Yes, prolonged sleep debt increases the risk of conditions like heart disease, diabetes, and depression. Sleep deprivation may also lead to accidents (26).

10. Can sleep debt affect mental performance?

Yes, accumulating sleep debt can significantly impair cognitive functions, affecting concentration, memory recall, and decision-making abilities (27).

  • 1. How Much Sleep Is Enough
    (https://www.nhlbi.nih.gov/health/sleep-deprivation/how-much-sleep)
  • 2. Prevalence of Healthy Sleep Duration among Adults - United States, 2014
    (https://www.cdc.gov/mmwr/volumes/65/wr/mm6506a1.htm)
  • 3. Extent and Health Consequences of Chronic Sleep Loss and Sleep Disorders
    (https://www.ncbi.nlm.nih.gov/books/NBK19961/)
  • 4. Sleep Debt: The Hidden Cost of Insufficient Rest
    (https://www.sleepfoundation.org/how-sleep-works/sleep-debt-and-catch-up-sleep)
  • 5. Weekend catch-up sleep won’t fix the effects of sleep deprivation on your waistline
    (https://www.health.harvard.edu/blog/weekend-catch-up-sleep-wont-fix-the-effects-of-sleep-deprivation-on-your-waistline-2019092417861)
  • 6. Insomnia: Definition, Prevalence, Etiology, and Consequences
    (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1978319/)
  • 7. Sleep Apnea
    (https://my.clevelandclinic.org/health/diseases/8718-sleep-apnea)
  • 8. Restless Legs Syndrome
    (https://my.clevelandclinic.org/health/diseases/9497-restless-legs-syndrome)
  • 9. Sleep Deprivation: Symptoms, Treatment, & Effects
    (https://www.sleepfoundation.org/sleep-deprivation)
  • 10. Acute Effect of Alcohol Intake on Cardiovascular Autonomic Regulation During the First Hours of Sleep in a Large Real-World Sample of Finnish Employees: Observational Study
    (https://pubmed.ncbi.nlm.nih.gov/29549064/)
  • 11. Snoring and Sleep
    (https://www.sleepfoundation.org/snoring)
  • 12. Sleeping With the Lights On
    (https://www.sleepfoundation.org/bedroom-environment/sleeping-with-the-lights-on)
  • 13. What are some myths about sleep?
    (https://www.nichd.nih.gov/health/topics/sleep/conditioninfo/sleep-myths#f5)
  • 14. Sleep myths: An expert-led study to identify false beliefs about sleep that impinge upon population sleep health practices
    (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6689426/#R27)
  • 15. The interactive effects of nocturnal sleep and daytime naps in relation to serum C-Reactive protein - PMC (nih.gov)
    (nih.gov)
  • 16. Stages of Sleep: What Happens in a Sleep Cycle
    (https://www.sleepfoundation.org/stages-of-sleep)
  • 17. Is rest as good as sleep?
    (https://www.sleepstation.org.uk/articles/sleep-science/is-rest-as-good-as-sleep/)
  • 18. Does it matter what time I go to bed?
    (https://imb.uq.edu.au/blog/2023/03/does-it-matter-what-time-i-go-bed)
  • 19. Binge Viewing, Sleep, and the Role of Pre-Sleep Arousal
    (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5529125/)
  • 20. Sleep Deprivation
    (https://my.clevelandclinic.org/health/diseases/23970-sleep-deprivation)
  • 21. Sleep tips: 6 steps to better sleep
    (https://www.mayoclinic.org/healthy-lifestyle/adult-health/in-depth/sleep/art-20048379)
  • 22. The Best Foods To Help You Sleep
    (https://www.sleepfoundation.org/nutrition/food-and-drink-promote-good-nights-sleep)
  • 23. The Best Foods To Help You Sleep
    (https://www.medindia.net/health/conditions/obstructive-sleep-apnea.htm#treatment-of-obstructive-sleep-apnea)
  • 24. Physiology, Circadian Rhythm
    (https://www.ncbi.nlm.nih.gov/books/NBK519507/)
  • 25. Effects of exercise training on sleep quality and heart rate variability in middle-aged and older adults with poor sleep quality: a randomized controlled trial
    (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7970583/)
  • 26. What Are Sleep Deprivation and Deficiency?
    (https://www.nhlbi.nih.gov/health/sleep-deprivation)
  • 27. Sleep deprivation: Impact on cognitive performance
    (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2656292/)

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