The Role of Gut Health in Sleep Quality
Gut health plays a crucial role in sleep quality, as the gut microbiome produces neurotransmitters like serotonin that regulate sleep. Disruptions in gut health can lead to sleep disturbances and insomnia. Maintaining a healthy gut through diet and probiotics can enhance overall sleep quality. For more information and tips on gut health and sleep quality, talk to our providers at Koala® Center For Sleep & TMJ Disorders. For more information, please contact us or book an appointment online now! We have convenient locations across the USA in Bloomington IL, Peoria/Dunlap IL, Mishawaka IN, Kansas City MO, El Paso TX, and Wausau WI.


Table of Contents:
How does the gut microbiome affect sleep patterns?
What are the dietary changes to promote gut health and better sleep?
What is the relationship between sleep and digestive health?
There is a diverse community of microorganisms in our digestive tract, known as our gut microbiome. It plays a major role in our wellness, influencing everything from our mental health to how well our immune system functions. Interestingly, recent research has also determined that there is a link between the bacteria in our gut and our sleep patterns.
Your gut microbiome can impact your sleep in several ways because the brain and the gut know each other well; they are connected through the “gut-brain axis.” Certain gut bacteria are associated with different sleep patterns and quality. For example, some people have an evening chronotype; they are often called night owls. With this chronotype, it’s common to have Enterobacteriaceae and Anaerofilum bacteria in the gut. In addition, Selenomonadales and Negativicutes bacteria in the gut were linked with higher rates of insomnia, while Lachnospiraceae UCG004 and Odoribacter are associated with longer sleep.
While research is ongoing to accurately understand the precise relationship between sleep quality and gut health, it’s clear that maintaining digestive wellness is essential for quality rest and general well-being. To support both gut and sleep health, it’s important to eat a balanced diet and consult a professional if concerns arise.
If you want to improve your gut health to enhance your sleep quality and wellness, you should keep the following tips in mind:
● Increase your fiber intake – A diet rich in fiber is good for the gut and promotes deeper, more restorative sleep. You should include legumes, vegetables, fruits, and whole grains in your diet, as these high-fiber foods support the growth of beneficial gut bacteria.
● Try fermented foods – Fermented foods like yogurt, sauerkraut, kefir, and kimchi are rich in probiotics. These beneficial bacteria can balance the gut microbiome, reduce inflammation, and improve sleep quality.
● Limit processed foods and sugar – Processed and high-sugar foods can negatively impact gut health by stimulating the growth of harmful bacteria and decreasing the diversity of the microbiome. Cutting back on these foods is recommended if you want to maintain a healthier gut and improve sleep patterns.
● Limit caffeine and alcohol – Drinking caffeine and alcohol in excess or close to bedtime can disrupt sleep patterns and negatively affect your gut. Caffeine commonly interferes with falling and staying asleep, while alcohol can disrupt the sleep cycle and affect the gut lining, leading to imbalances in the microbiome.
● Stay well hydrated – Hydration is essential for maintaining a healthy gut, as water helps with digestion and nutrient absorption. Proper hydration can also prevent disruptions in sleep caused by discomfort or digestive issues.
The relationship between sleep and digestive health is bidirectional, meaning they both influence each other. Poor sleep can negatively affect gut health, and an unhealthy gut can lead to sleep disturbances. For example, studies have shown that sleep deprivation can lead to an increase in harmful bacteria and a decrease in beneficial bacteria. This imbalance can promote inflammation, weaken the immune system, and increase the risk of gastrointestinal issues like irritable bowel syndrome (IBS) and inflammatory bowel disease (IBD).
Moreover, poor sleep can affect the gut-brain axis, leading to increased stress and anxiety, which can further disrupt gut health. Chronic stress from sleep deprivation can lead to changes in gut motility, increase intestinal permeability (leaky gut), and worsen digestive disorders.
Digestive issues such as bloating, gas, and acid reflux can cause disruptive symptoms that make it difficult to fall asleep or stay asleep. In contrast, a healthy gut microbiome promotes the production of essential neurotransmitters that regulate sleep, such as melatonin and serotonin. An imbalance in gut bacteria can disrupt this process, leading to issues like insomnia and fragmented sleep.
If you suspect your sleep problems may be linked to your gut health, it’s important to speak to a sleep medicine doctor to determine what’s at the root of your concerns. The expert can provide guidance on how to improve your sleep by addressing the underlying cause of the problem, whether it be poor sleep hygiene, gut problems, or another issue.

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