10 May Catch up on Your Ramadan Sleep! Repay your “SLEEP DEBT”
Catch up on your lost sleep in Ramadan! REPAY your “SLEEP DEBT”??
Our bodies have constant sleep needs for rest and recuperation. If you go too long without getting adequate sleep, you begin to accumulate a “sleep debt”, which has serious consequences on our cognitive performance.
Sleep debt is a mathematical relationship between the hours of sleep that you need each night (7-9 hours) minus the hours of sleep that you actually get. Each hour of lost sleep is added to your sleep debt (4)
One study followed students who slept only 4 hours a night and found that after only 6 days of sleep deprivation, they had higher blood pressure and higher levels of the stress hormone cortisol. Another study found that after 2 weeks, people who slept 4 hours a night had the same cognitive impairments as people who had pulled a full all-nighter with no sleep at all! Even people who slept 6 hours a night showed reduced reaction time and memory after 2 weeks (3).
Interestingly, when your sleep debt accumulates over time, you actually stop being able to recognise how sleep-deprived you are! Harvard Health explains how sleep-deprived individuals begin to think their sleepiness is normal (3)
Once sleep deprivation — with its fuzzy-headedness, irritability, and fatigue — has us in its sway, we can hardly recall what it’s like to be fully rested. And as the sleep debt mounts, the health consequences increase, putting us at growing risk for weight gain, diabetes, heart disease, stroke, and memory loss.
Reading these findings should emphasise how important your sleep is during Ramadan. The fact is you cannot simply expect to power through all of Ramadan on low sleep. You WILL experience decreases in cognitive performance and memory. You will probably become more irritable, especially as your sleep debt increases as the month goes on. You may put yourself at increased risk for weight gain and indulging in unhealthy cravings.
If you are sacrificing and cutting into your sleep for social reasons during Ramadan, these negative effects simply are not worth it. Prioritise your sleep and try to go to sleep as SOON as possible immediately after Taraweh to maximise sleep hours.
What if you CANNOT get enough sleep due to timezones, work hours, Qiyaam, etc.? Repaying your Sleep Debt
It’s very difficult as suhoor is at 2.30am and iftar is 9.35 and then I have to wake up at 7.30am to go work till 5pm. So how can I manage to get a good night’s sleep? – Question from Sister Anonymous
Many Muslims are worried about sleep-deprivation when dealing with work and Ramadan timings and circumstances beyond their control. Some examples of scenarios in which sleep deprivation is UNAVOIDABLE (and not by choice):
- You live in a timezone or geographic location in which you simply are not able to get the required number of hours of sleep during the night between Taraweh and Suhoor and Qiyaam.
- You are doing your best to go to sleep RIGHT after Taraweh, and yet you’re still not getting enough hours of sleep.
- You love to awaken to pray Qiyaam ul-Layl night prayers, and are wondering how to work your sleep around this precious ibadah.
- You have a long and difficult work schedule in which you are forced to cut into your sleep and wake times. Many Muslims experience reduced sleep during Ramadan and need solutions on how to feel more rested.
Research has shown that it is possible to “repay” short-term (not chronic) sleep debt, especially when the sleep debt is paid back quickly.
One study found that the negative consequences of higher blood pressure and increased cortisol levels due to lack of sleep were reversed when participants “made up” the sleep they missed by adding extra hours of sleep afterwards (3). Another study found that after 4 days of low sleep, participants could “reverse” the effects of sleep-deprivation if they caught up on the sleep they missed within 2 days (9).
Although research findings are mixed and some studies suggest it may not be so easy to “repay” your sleep debt, based on this current research, repaying back your sleep debt as soon as possible is the best advice sleep experts can give to mitigate the harmful effects of sleep-deprivation long-term.
If you find yourself racking up sleep debt in Ramadan, try MITIGATING your sleep debt using the following strategies to FILL IN your missing hours of sleep:
Sleep researcher Kurt VonRueden suggests keeping a “sleep diary” in which you keep track of your hours of sleep missed.
In Ramadan, tabulate how many hours you are missing per day and then plan to “repay” those hours on the weekend or through the other strategies listed above.
Be aware that sleep researcher Kurt VonRueden argues that you can only pay back your sleep debt 1-2 hours at a time. Your goal is to repay your sleep debt little by little, by adding more sleep into your schedule whenever possible:
Sleep debt has to be paid in “installments” and these “payments” usually need to be spread over several days or weeks. You cannot have a marathon sleep during the weekends to catch up on sleep loss. You can only pay back sleep debt in increments of 1-2 hours. If you are 10 hours or more in sleep debt, do not expect to pay it all back at once. (4)
A note of caution: current research also suggests that your sleep debt functions like a bank account. In small amounts, you can repay your debt. However, after missing out of 20 hours of sleep, you essentially are forced into “sleep bankruptcy”:
Each hour of lost sleep is added to your sleep debt until this debt reaches 20 hours, which is the maximum “sleep debt ceiling” After the 20-hour debt ceiling, any additional accumulation increases the chance that you may not be able to reverse the long-term effects of sleep deprivation, which could cause serious health issues. (4)
In order to make the most of Ramadan, you must be vigilant and stay on top of your sleep debt. Catch up on hours or minutes through napping whenever you can as SOON as you can. Try catching up on your missed sleep hours on a week-to-week basis.
Sleep in the Last 10 Nights of Ramadan
Ideally, you should have repaid your ENTIRE sleep debt from the first 20 days of Ramadan when the last 10 nights of Ramadan begins. This way, you can push yourself in your ibadah in the last 10 nights, and repay your final sleep debt on Eid or in the immediate days thereafter!
A’ishah (May Allah be pleased with her) reported: When the last ten nights (of Ramadan) would begin, the Messenger of Allah (peace and blessings be upon him) would keep awake at night (for prayer and devotion), awaken his family and prepare himself to be more diligent in worship. (Al-Bukhari and Muslim).
The last 10 nights are a time to push yourself physically and mentally in the pursuit of spiritual rewards. By taking care of your sleep debt earlier in the month, you can dedicate yourself to getting the most out of the last 10 nights of Ramadan while minimising your sleep debt as much as possible.
Your sleep debt may widen dramatically during the last 10 nights. The best way to approach this is being intentional about prioritising ibadah and minimising sleep-stealing distractions, napping appropriately in the day, and catching up on your sleep debt immediately after Ramadan concludes.
Realise it is your RESPONSIBILITY to your body to catch up on your sleep whenever you can. Your body’s need for sleep needs to be respected, even as you try to make more time for worship:
The Prophet ﷺ said: Verily, your body has a right over you.
The Prophet ﷺ emphasised the importance of not neglecting your body’s needs:
It was narrated from Anas that there was a group of the Companions of the Prophet, one of whom said: “I will not marry women.” Another said: “I will not eat meat.” Another said: “I will not sleep on a bed.” Another said: “I will fast and not break my fast.” News of that reached the Messenger of Allah and he praised Allah then said: “What is the matter with people who say such and such? But I pray and I sleep, I fast and I break my fast, and I marry women. Whoever turns away from my Sunnah is not of me.” (Sunan an-Nasa’i 3217)
Be proactive in keeping a sleep diary and keeping track of how many hours of sleep you are missing in the last 10 nights of Ramadan. Be responsible in making these hours up after Ramadan concludes, as quickly as possible, to avoid long-term negative effects of sleep deprivation.
Note: The field of sleep research is constantly adapting and growing. These findings are based on current research and future research findings may disprove or change these findings. This is the nature of science. However, we must try to do our best with the current research and knowledge we have to nurture and protect our bodies and our sleep to the best of our abilities.
One of the most common questions people have about sleep is whether they can NAP to fill in their sleep debt. Naps are an excellent tool for effective sleep… if they are done CORRECTLY! There is definitely a WRONG way to nap! In the next article, learn how to nap properly to feel rested throughout Ramadan!
Healthy FOOD, EXERCISE and SLEEP must come together for your HEALTHIEST Ramadan ever! Luckily, we’ve got you covered!
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- BaHammam, Ahmed. (2007). Does Ramadan fasting affect sleep?. International journal of clinical practice. 60. 1631-7. Available from: https://www.researchgate.net/
- BaHammam, A. (2003). Sleep pattern, daytime sleepiness, and eating habits during the month of Ramadan. Sleep and Hypnosis, 5, 165-174.
- Harvard Health. (2018). Repaying your sleep debt – Harvard Health. [online] Harvard Health. Available at: https://www.health.harvard.edu/
- VonRueden, K. (2014, September). Sleep Deprivation in the Workplace: The Hidden Side of Health and Wellness. In ASSE Professional Development Conference and Exposition. American Society of Safety Engineers. Available from: http://www.asse.org/
- Winter, W. C. (2017). The Sleep Solution: Why Your Sleep is Broken and how to Fix it. Penguin.
- Asarnow, L. D., McGlinchey, E., & Harvey, A. G. (2015). Evidence for a possible link between bedtime and change in body mass index. Sleep, 38(10), 1523-1527.
- Knutson, K. L., & Van Cauter, E. (2008). Associations between sleep loss and increased risk of obesity and diabetes. Annals of the New York Academy of Sciences, 1129(1), 287-304.
- Broussard, J. L., Kilkus, J. M., Delebecque, F., Abraham, V., Day, A., Whitmore, H. R., & Tasali, E. (2016). Elevated ghrelin predicts food intake during experimental sleep restriction. Obesity, 24(1), 132-138.
- Broussard, J. L., Wroblewski, K., Kilkus, J. M., & Tasali, E. (2016). Two nights of recovery sleep reverses the effects of short-term sleep restriction on diabetes risk. Diabetes Care, 39(3), e40-e41.
- Greer, S. M., Goldstein, A. N., & Walker, M. P. (2013). The impact of sleep deprivation on food desire in the human brain. Nature communications, 4, 3259.