Table of Contents
How Does Sauna Affect the Body and Sleep?
Scientific Studies on Sauna and Insomnia
Practical Tips for Using Sauna to Improve Sleep
When to Be Careful
Conclusion
Insomnia is one of the most common sleep problems in modern society, negatively affecting sleep quality, mental health, and overall well-being. Among various natural remedies for better sleep, sauna therapy is gaining more attention. While heat therapy has been practiced for centuries in many cultures, modern science increasingly supports its role in promoting relaxation and restorative sleep.
How Does Sauna Affect the Body and Sleep?
A sauna session acts as a natural regulator of body temperature and the nervous system. During sweating in the sauna, several physiological processes occur:
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Increased blood circulation
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Relaxation of muscles
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Reduced stress and cortisol levels
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Release of endorphins
After leaving the sauna, the body naturally cools down, mimicking the physiological process that prepares the body for sleep. This can make it easier to fall asleep and extend the duration of deep sleep stages.

Scientific Studies on Sauna and Insomnia
Several studies highlight the connection between sauna use and improved sleep patterns:
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Finnish study (2019): Found that sauna bathing improved sleep quality in people with mild sleep disorders.
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Japanese study (2017): Showed that a 15–20 minute sauna session before bedtime reduced sleep onset time and increased REM sleep.
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Review study (2021): Concluded that sauna use also benefits mental health, indirectly reducing anxiety and nighttime awakenings.
While more research is still needed, current evidence suggests that sauna therapy may be an effective natural remedy for insomnia.
Practical Tips for Using Sauna to Improve Sleep
If you want to use sauna as a natural aid for better sleep, keep these tips in mind:
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Choose an evening session – ideally 1–2 hours before bedtime.
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Limit the time – 10–20 minutes per session is recommended.
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Listen to your body – avoid overly long sessions if you feel exhausted.
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Stay hydrated – drink water before and after sauna use.
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Stay consistent – regular sauna use (2–3 times per week) provides the best results.

When to Be Careful
Sauna therapy is not suitable for everyone. People with cardiovascular disease, high blood pressure, pregnant women, and those with acute health conditions should consult their doctor before using a sauna.
Conclusion
Sauna combines ancient wellness traditions with modern scientific evidence. It can relax muscles, calm the mind, and prepare the body for deep, restorative sleep.
While sauna use does not replace medical treatment for chronic insomnia, it can be a valuable natural aid for improving sleep quality. Why not give it a try? You may discover that the warmth of a sauna holds the secret to peaceful nights.
If you are considering bringing a sauna into your home and sleep routine, explore our online sauna collection – it could be your next step toward better sleep.