The Most Ignored Medicine for Diabetes: Sleep
Why Better Sleep Makes Diabetes Feel Less Like a Daily Battle
Any talk of overcoming diabetes is usually about food and exercise. But there's something else, possibly far more impactful, that often gets overlooked - SLEEP.
Drawing from solid research and real insights, let's explore why giving sleep the attention it deserves could be a game-changer for anyone dealing with diabetes.
Why Sleep Might Be Your Best Ally
A recent study on 3,141 people from across the United States, found the following:
Lack of sleep reduces life expectancy.
Lack of sleep has a greater impact on life expectancy than poor food choices, lack of exercise, social connections, and many other factors.
Only smoking had a greater impact on life expectancy than lack of sleep.
This study very clearly makes the point that sleep might outrank diet and exercise for longevity.
What Happens to Your Blood Sugar When Sleep Slips Away
Picture a lab where scientists test what happens when people don't get enough sleep. In a study published in The Lancet, folks who were short on sleep saw their bodies react like they were stressed out:
Their ability to handle glucose dipped.
Hormones like thyrotropin dropped, which could result in impaired glucose metabolism, increased insulin resistance and increased risk for diabetic complications.
Cortisol (the stress hormone) spiked in the evenings. Increased cortisol triggers the liver to produce and release more glucose into the bloodstream.
The nervous system went into overdrive.
A Wake-Up Call from "Why We Sleep"
In his book Why We Sleep, the sleep scientist Matthew Walker shares an eye-opening nugget: Just one week of cutting back on sleep—even moderately—can mess with your blood sugar so much that a healthy person might test as pre-diabetic. Sleep disruption contributes to major psychiatric conditions, including depression and anxiety, which could in turn further increase blood sugar levels.
When Hunger Hormones Get Out of Whack
Ever noticed how a rough night leaves you raiding the fridge? That's no coincidence. Sleep loss tweaks your appetite hormones:
Ghrelin (the "I'm starving" signal) ramps up.
Leptin (the "I'm full" cue) takes a nosedive.
A study in the American Journal of Public Health showed that even when folks ate the same amount, sleep-deprived people felt hungrier all day. No wonder we reach for sweets or snacks—it's biology at play.
For someone with diabetes, this can feel like a setup for struggle. But understanding it helps that extra craving isn't a lack of willpower; it's your body crying out for balance. Another study had people sleeping just 5.5 hours—they ended up snacking on about 200 extra calories daily. It's a cycle, but one we can easily break.
My personal observation has been that when I am sleep deprived:
I eat more.
I eat more frequently.
I crave for sweet / starchy food.
The Sneaky Link Between Sleep, Energy, and Weight
Here's a twist: Not sleeping enough burns a tiny bit more energy—around 100 calories a day. Sounds good, right? But it backfires because you end up eating way more, about 250 extra calories, leading to weight creep. Over time, this tips the scales toward obesity, which increases the risk of diabetes.
So How Much Should One Sleep?
7 to 9 hours of sleep each night appears to be the gold standard, and that's backed by expert institutions such as the American Academy of Sleep Medicine and the Sleep Research Society. But here's where it gets interesting—it's not just about clocking those hours; the quality of your sleep can make all the difference, sometimes even more than the quantity.
A recent study tracking over 70,000 people with health devices for 3.5 years found that sleep efficiency (how much of your time in bed is actually spent sleeping) and sleep latency (how quickly you fall asleep after getting into bed) have a bigger impact on your energy and activity levels the next day than sheer duration of sleep alone. It was found in the study that poor sleep quality led to fewer steps the following day, which can indirectly worsen metabolic health by limiting movement.
From our perspective, try ditching the alarm clock if you can—it can help you complete natural sleep cycles and prevent you from becoming groggy. If life demands an early rise, ease into your evening routine sooner to ensure you still get the rest you need. It's about listening to your body and creating space for rejuvenation.
Simple Ways to Invite Better Sleep Into Your Life
The good news is that you don't need a total overhaul. Just some kind, doable tweaks that research supports. Think of them as gentle nudges toward feeling more rested.
Stick to a rhythm: Hit the bed and rise at the same times every day—even weekends. Your body loves the predictability.
Ditch screens early: Power down gadgets at least an hour before bed. Blue light messes with melatonin, the “sleep chemical”, throwing off your internal clock.
Wind down softly: Dim the lights, hush the noise, and let your mind ease into rest. A cozy ritual can make all the difference.
Try mindfulness: Meditation can reduce anxiety and boost sleep quality. Research suggests it is as helpful as medication for easing worries that keep you up.
Garlic trick: Munch on 2 cloves of garlic about 30 minutes before bed. Ensure that you crush the garlic well for maximum effect. Garlic is packed with adenosine, a chemical that builds sleep pressure.
Watch evening habits: Skip caffeine and big meals late—they can steal your deep sleep.
These aren't chores; they are acts of self-care. Start with one or two and build from there. You will likely notice that your energy lifts and making healthier choices feels more natural.
It's Easier Than It Sounds
No one's asking for flawless execution here. No fancy gadgets or rigid plans. Just a bit of kindness towards yourself. Better sleep often snowballs—suddenly, eating well feels simpler, moving your body more enjoyable, and keeping blood sugar steady less of a fight.
Sleep isn't another box to tick on your diabetes to-do list. It's the soft foundation that holds everything else up, helping you thrive.
Zzzzzz….
If this post has you yawning and ready for a nap, that's music to my ears— I consider it a win :)
So, take a deep breath, close this tab... and treat yourself to some well-deserved sleep.
References:
“Sleep is more important for longevity than diet, exercise, social ties, study says.” Corrie Pelc, Jill Seladi-Schulman, Ph.D., 12 December 2025, https://www.medicalnewstoday.com/articles/sleep-is-more-important-for-longevity-than-diet-exercise-social-ties.
“Mindfulness may be as effective as antidepressant for anxiety symptoms.” Katharine Lang, Jill Seladi-Schulman, Ph.D., 17 October 2024, https://www.medicalnewstoday.com/articles/mindfulness-may-be-as-effective-as-antidepressant-relieving-anxiety-symptoms.
“Sleep vs exercise: How to strike the balance for health.” Deep Shukla, Kevin Cyr, MD, 26 December 2025, https://www.medicalnewstoday.com/articles/mnt-4044679.
“Bidirectional associations between sleep and physical activity investigated using large-scale objective monitoring data.” Josh Fitton, Duc Phuc Nguyen, Bastien Lechat, Hannah Scott, Barbara Toson, Jack Manners, Claire Dunbar, Kelly Sansom, Lucia Pinilla, Anna Hudson, Ganesh Naik, Andrew Vakulin, Amy C. Reynolds, Peter Catcheside, Pierre Escourrou, Danny J. Eckert, 8 December 2025, https://www.nature.com/articles/s43856-025-01226-6.
“Joint association of physical activity and sleep duration with risk of all-cause and cause-specific mortality: a population-based cohort study using accelerometry.” Huan Ma, Yannis Yan Liang et al., 12 July 2023, https://academic.oup.com/eurjpc/article/30/9/832/7086191?login=false.
“Behavioral Risk Factor Surveillance System.” Centers for Disease Control and Prevention, 12 September 2025, https://www.cdc.gov/brfss/index.html.
“Mindfulness Meditation vs Escitalopram for Treatment of Anxiety Disorders: Secondary Analysis of a Randomized Clinical Trial.” Hu H, Mete M, Rustgi NK, Washington CI, Sanghavi K, Dutton MA, Simon NM, Baker AW, Bui E, Hoge EA, 9 October 2024, https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2824672#google_vignette.
“Impact of sleep debt on metabolic and endocrine function.” Eve Van Cauter, 23 October 1999, https://www.sciencedirect.com/science/article/abs/pii/S0140673699013768.
“Association of Sleep Adequacy With More Healthful Food Choices and Positive Workplace Experiences Among Motor Freight Workers.” Orfeu M. Buxton, Lisa M. Quintiliani, May H. Yang, Cara B. Ebbeling, Anne M. Stoddard, Lesley K. Pereira, Glorian Sorensen, November 2009, https://ajph.aphapublications.org/doi/full/10.2105/AJPH.2008.158501.
“The role of insufficient sleep and circadian misalignment in obesity.” Jean-Philippe Chaput, Andrew W. McHill, Rebecca C. Cox, Josiane L. Broussard, Caroline Dutil, Bruno G. G. da Costa, Hugues Sampasa-Kanyinga, Kenneth P. Wright Jr, 24 October 2022, https://www.nature.com/articles/s41574-022-00747-7.
“Perspective: Casting light on sleep deficiency.” Charles A. Czeisler, 22 May 2013, https://www.nature.com/articles/497S13a.