Unlock Better Sleep: How Diabetes Affects Your Rest and How to Fix It

June 1, 2024

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Did you know that over 40% of people with diabetes report having trouble falling asleep or staying asleep through the night?[3] While discussions about the impact of diabetes on heart, kidney, and eye health are common, the topic of sleep often gets overlooked. However, for many people, a good night’s rest is crucial for overall well-being, energy levels, and even blood sugar control. In this comprehensive guide, we’ll explore how diabetes can disrupt your sleep, share practical tips for managing sleep problems, and emphasize the importance of working with your healthcare team to find solutions. Whether you’re newly diagnosed or have been living with diabetes for years, this article will empower you with the knowledge and tools needed to unlock better sleep and improve your quality of life.

Understanding the Impact of Diabetes on Sleep

Diabetes can affect sleep in various ways, primarily due to fluctuations in blood sugar levels and related complications. Let’s take a closer look at some of the most common sleep issues faced by people with diabetes.

Sleep Disruption

Sleep disruption is a broad term that encompasses several sleep problems commonly experienced by people with diabetes, including:

  1. Sleep apnea: This condition occurs when a person’s breathing repeatedly stops and starts during sleep, often due to an obstruction in the airway. Symptoms may include loud snoring, gasping for air, and daytime fatigue. Sleep apnea is more common in people with type 2 diabetes, particularly those who are overweight or obese.[2][7]
  2. Insomnia: Characterized by difficulty falling asleep, staying asleep, or both, insomnia can be caused by various factors related to diabetes, such as high blood sugar levels, stress, and anxiety.[5][9]
  3. Restless legs syndrome (RLS): This condition causes an uncomfortable sensation in the legs and an irresistible urge to move them, which can make it difficult to fall asleep or stay asleep. RLS is more common in people with diabetes, possibly due to nerve damage or iron deficiency.[7][9]
  4. Frequent urination: High blood sugar levels can cause increased urination, leading to multiple nighttime bathroom trips that disrupt sleep.[4][6]

Blood Sugar and Sleep Quality

Blood sugar levels play a significant role in sleep quality for people with diabetes. Both high (hyperglycemia) and low (hypoglycemia) blood sugar can interfere with sleep:

  1. Hyperglycemia: When blood sugar levels are too high, the body tries to eliminate excess glucose through increased urination. This can lead to dehydration, headaches, and frequent nighttime bathroom visits, all of which can disrupt sleep.[4][6]
  2. Hypoglycemia: Low blood sugar levels can cause symptoms like sweating, shaking, dizziness, and hunger, which can wake you up during the night. Nocturnal hypoglycemia is a particular concern for people with diabetes who take insulin or certain oral medications.[4][6]

Maintaining stable blood sugar levels throughout the night is essential for promoting better sleep quality and preventing complications.

Nerve Pain and Sleep

Diabetes can cause nerve damage (neuropathy), which may lead to pain, tingling, or numbness in the feet and legs. This discomfort can make it challenging to fall asleep or stay asleep, as the sensations may be more noticeable when lying down.[3][7]

Managing nerve pain through medications, lifestyle changes, and proper foot care can help improve sleep quality for those with diabetic neuropathy.

Managing Sleep Problems with Diabetes

While diabetes can pose challenges to getting a good night’s rest, there are many strategies and treatments available to help manage sleep problems and improve overall sleep quality. Here are some key steps you can take:

Blood Sugar Control

Keeping your blood sugar levels within the target range recommended by your healthcare team is crucial for promoting better sleep and preventing complications. Consistently high or low blood sugar can disrupt sleep patterns and contribute to sleep problems.[1][4]

To maintain good blood sugar control:

  • Follow a balanced, diabetes-friendly eating plan
  • Engage in regular physical activity
  • Take your diabetes medications as prescribed
  • Monitor your blood sugar levels regularly, including before bedtime[1][6]

Sleep Hygiene

Practicing good sleep hygiene can help create an environment and routine conducive to better sleep. Some key tips include:

  1. Establish a regular sleep schedule: Go to bed and wake up at the same time every day, even on weekends, to help regulate your body’s internal clock.[8][12]
  2. Create a relaxing bedtime routine: Engage in calming activities like reading, taking a warm bath, or practicing relaxation techniques before bed to help you unwind and prepare for sleep.[8][11]
  3. Optimize your sleep environment: Keep your bedroom dark, quiet, and cool. Use comfortable bedding and pillows, and consider investing in a supportive mattress.[8][12]
  4. Limit caffeine and alcohol: Avoid consuming caffeine in the afternoon and evening, and limit alcohol intake, as both can interfere with sleep quality.[8][12]
  5. Avoid screens before bed: The blue light emitted by electronic devices can suppress the production of melatonin, a hormone that helps regulate sleep. Try to avoid screens for at least an hour before bedtime.[9][11]

Managing Sleep Apnea

Sleep apnea is a common sleep disorder among people with diabetes, particularly those with type 2 diabetes. If you suspect you may have sleep apnea, talk to your healthcare provider about getting a sleep study (polysomnography) to diagnose the condition.[2][7]

Treatment options for sleep apnea include:

  1. Continuous positive airway pressure (CPAP): This therapy involves wearing a mask that delivers a steady stream of air to keep your airway open during sleep.[2][7]
  2. Lifestyle changes: Losing weight, avoiding alcohol and sedatives, and sleeping on your side can help reduce the severity of sleep apnea symptoms.[2][7]
  3. Oral appliances: Custom-fitted mouthpieces can help reposition the jaw and tongue to keep the airway open during sleep.[2][7]

Treating sleep apnea can lead to better sleep quality, improved daytime functioning, and better overall health outcomes for people with diabetes.

Addressing Insomnia and Restless Legs Syndrome

If you’re struggling with insomnia or restless legs syndrome (RLS), there are several strategies and treatments that can help:

  1. Cognitive-behavioral therapy for insomnia (CBT-I): This therapy helps identify and change thoughts and behaviors that interfere with sleep. It may include techniques like relaxation training, sleep restriction, and stimulus control.[9][12]
  2. Medications: In some cases, your healthcare provider may recommend short-term use of sleep aids or medications specifically designed to treat RLS, such as dopaminergic agents or gabapentin.[7][9]
  3. Lifestyle changes: Regular exercise (but not too close to bedtime), stress management techniques, and avoiding caffeine and alcohol can help alleviate symptoms of insomnia and RLS.[8][9]
  4. Iron supplementation: For some people with RLS, iron deficiency may be a contributing factor. Your healthcare provider can check your iron levels and recommend supplements if necessary.[9]

Working closely with your healthcare team can help you find the most effective treatment plan for managing insomnia or RLS and improving your sleep quality.

Medications and Sleep

Some medications used to treat diabetes or related conditions may affect sleep quality. For example:

  1. Insulin: Taking insulin injections too close to bedtime or not adjusting doses properly can lead to nocturnal hypoglycemia, which can disrupt sleep.[4][6]
  2. Metformin: This common diabetes medication can cause digestive side effects, such as diarrhea and nausea, which may interfere with sleep.[4]
  3. Beta-blockers: These medications, often prescribed for high blood pressure or heart conditions, can cause insomnia or nightmares in some people.[4]

If you suspect your medications are affecting your sleep, don’t stop taking them without consulting your healthcare provider. They can help adjust your dosage, timing, or medication regimen to minimize sleep disturbances while still effectively managing your diabetes.

The Effects of Poor Sleep on Diabetes Management

Getting enough quality sleep is essential for overall health and well-being, but it’s especially crucial for people with diabetes. Poor sleep can have several negative effects on diabetes management, including:

Increased Blood Sugar Levels

Sleep deprivation can lead to insulin resistance, making it harder for your body to regulate blood sugar levels effectively. Studies have shown that even a single night of poor sleep can cause an increase in insulin resistance.[1][4]

Consistently high blood sugar levels can contribute to the development of diabetes complications, such as heart disease, kidney damage, and nerve problems.[1][8]

Impaired Glucose Metabolism

Insufficient sleep and irregular sleep patterns can disrupt your body’s natural circadian rhythms, which play a role in regulating glucose metabolism. This disruption can lead to impaired glucose tolerance and an increased risk of developing type 2 diabetes.[1][4]

Increased Appetite and Weight Gain

Sleep deprivation can affect the hormones that regulate hunger and appetite, leading to increased cravings for high-calorie, carbohydrate-rich foods. This can make it more challenging to maintain a healthy weight, which is essential for managing diabetes.[8][9]

Daytime Fatigue and Reduced Physical Activity

When you don’t get enough quality sleep, you may feel tired and sluggish during the day. This can make it harder to find the motivation and energy to engage in regular physical activity, which is crucial for managing diabetes and maintaining overall health.[8][12]

Impaired Decision-Making and Self-Care

Lack of sleep can affect cognitive function, making it more difficult to make healthy choices and stick to your diabetes management plan. This can include forgetting to take medications, making poor food choices, or neglecting to monitor blood sugar levels regularly.[8][12]

By prioritizing sleep and addressing sleep problems, you can help mitigate these negative effects and improve your overall diabetes management.

Working with Your Healthcare Team

Managing sleep problems when you have diabetes requires a collaborative approach between you and your healthcare team. Here are some ways to work together to improve your sleep and overall health:

Communicate openly about sleep concerns

Don’t hesitate to bring up any sleep issues or concerns with your healthcare provider, even if they don’t ask about it directly. Share details about your sleep habits, any symptoms you’re experiencing, and how sleep problems are affecting your daily life and diabetes management.[8]

If your healthcare provider suspects you may have a sleep disorder like sleep apnea, they may recommend a sleep study (polysomnography). This test involves spending a night in a sleep lab, where your brain waves, oxygen levels, heart rate, and other vital signs are monitored while you sleep. The results can help diagnose sleep disorders and guide treatment decisions.[7][9]

Collaborate on a comprehensive treatment plan

Work with your healthcare team to develop a personalized treatment plan that addresses both your diabetes and sleep issues. This may include adjusting your diabetes medications, implementing lifestyle changes, or exploring specific therapies for sleep disorders.[8][12]

Regularly review and adjust your plan

As your needs and circumstances change over time, be sure to regularly review and update your treatment plan with your healthcare team. This may involve modifying your sleep hygiene practices, trying new therapies, or adjusting your diabetes management strategies to optimize both your sleep and blood sugar control.[8][12]

By fostering open communication and collaboration with your healthcare team, you can effectively address sleep problems and improve your overall health and well-being while living with diabetes.

Key Takeaways

  • Diabetes can affect sleep in various ways, including causing sleep disruptions, altering blood sugar levels, and exacerbating nerve pain.
  • Common sleep problems among people with diabetes include sleep apnea, insomnia, restless legs syndrome, and frequent nighttime urination.
  • Maintaining good blood sugar control, practicing sleep hygiene, and addressing specific sleep disorders are essential for improving sleep quality.
  • Poor sleep can negatively impact diabetes management by increasing blood sugar levels, impairing glucose metabolism, increasing appetite, and reducing daytime energy and cognitive function.
  • Working closely with your healthcare team is crucial for developing a comprehensive treatment plan that addresses both diabetes and sleep issues.

By understanding the complex relationship between diabetes and sleep, implementing effective management strategies, and prioritizing open communication with your healthcare team, you can unlock better sleep and enhance your overall health and quality of life while living with diabetes.

Frequently Asked Questions

Can diabetes cause insomnia?

Yes, diabetes can contribute to insomnia in several ways. High blood sugar levels can lead to frequent urination, thirst, and headaches, which can disrupt sleep. Additionally, stress and anxiety related to diabetes management can make it difficult to fall asleep or stay asleep throughout the night.

How does sleep apnea affect blood sugar levels in people with diabetes?

Sleep apnea can cause repeated pauses in breathing during sleep, leading to reduced oxygen levels in the blood. This can trigger the release of stress hormones, which can increase insulin resistance and cause blood sugar levels to rise. Treating sleep apnea with continuous positive airway pressure (CPAP) therapy or other methods can help improve insulin sensitivity and blood sugar control in people with diabetes.

What are some relaxation techniques that can help improve sleep for people with diabetes?

Several relaxation techniques can promote better sleep, including deep breathing exercises, progressive muscle relaxation, guided imagery, and meditation. These practices can help calm the mind, reduce stress and anxiety, and prepare the body for sleep. Incorporating relaxation techniques into your bedtime routine can be an effective way to improve sleep quality.

Should people with diabetes and sleep problems avoid caffeine entirely?

While individual tolerance to caffeine varies, it’s generally recommended to limit or avoid caffeine intake, especially in the afternoon and evening, if you have diabetes and sleep problems. Caffeine can stay in your system for several hours and interfere with your ability to fall asleep or achieve deep, restful sleep. If you do consume caffeine, try to do so earlier in the day and be mindful of your body’s response.

How much exercise is recommended for better sleep and diabetes management?

Regular physical activity is essential for both improving sleep quality and managing diabetes. The American Diabetes Association recommends aiming for at least 150 minutes of moderate-intensity aerobic exercise per week, spread out over at least three days, with no more than two consecutive days without activity. Additionally, engaging in resistance training at least two to three times per week can provide further benefits. However, it’s important to avoid exercising too close to bedtime, as this can have a stimulating effect and make it harder to fall asleep. Aim to finish your workout at least a few hours before your planned bedtime.

By incorporating these strategies and working closely with your healthcare team, you can effectively manage sleep problems and optimize your diabetes care for better overall health and well-being.


  1. Tam Dao, N. H., Shah, J., Moriyama, M., Nguyen, T., & Ranjit, T. (2021). Effects of sleep intervention on glucose control: A narrative review of clinical evidence. Diabetes & Metabolic Syndrome: Clinical Research & Reviews, 15(3), 869-877. https://doi.org/10.1016/j.dsx.2021.03.029
  2. Khandelwal, D., Dutta, D., Chittawar, S., & Kalra, S. (2017). Sleep Disorders in Type 2 Diabetes. Indian Journal of Endocrinology and Metabolism, 21(5), 758-761. https://doi.org/10.4103/ijem.IJEM_156_17
  3. Surani, S., Brito, V., Surani, A., & Ghamande, S. (2015). Effect of diabetes mellitus on sleep quality. World Journal of Diabetes, 6(6), 868-873. https://doi.org/10.4239/wjd.v6.i6.868
  4. WebMD. (2023, September 9). How Sleep Affects Your Blood Sugar. https://www.webmd.com/diabetes/sleep-affects-blood-sugar
  5. Vinmec International Hospital. (n.d.). Medications to support sleep and diabetes. https://www.vinmec.com/en/news/health-news/general-health-check/medications-to-support-sleep-and-diabetes/
  6. Diabetes UK. (2023, August 23). Sleep and diabetes. https://www.diabetes.org.uk/guide-to-diabetes/life-with-diabetes/sleep-and-diabetes
  7. WebMD. (2022, April 22). Type 2 Diabetes and Sleep. https://www.webmd.com/diabetes/type-2-diabetes-sleep
  8. Sleep Foundation. (2023, October 26). Lack of Sleep and Diabetes. https://www.sleepfoundation.org/physical-health/lack-of-sleep-and-diabetes
  9. Healthline. (n.d.). The Link Between Diabetes and Sleep. https://www.healthline.com/health/diabetes/diabetes-and-sleep
  10. Vinmec International Hospital. (n.d.). Diabetes sleep problems. https://www.vinmec.com/en/news/health-news/general-health-check/diabetes-sleep-problems/
  11. National Sleep Foundation. (n.d.). Diabetes and Sleep. https://www.thensf.org/diabetes-and-sleep/
  12. American Diabetes Association. (n.d.). Sleep and Diabetes. https://www.diabetes.org/healthy-living/sleep-and-diabetes
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