Researchers Studied Infrared Sauna Blanket Effects
A study analyzed the physiological impacts and sleep outcomes of using portable infrared sauna blankets.
Updated on Sept. 22, 2026 in Sleep Disorders
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In September 2026, researchers published findings from a pilot study conducted at St. Mary's University regarding the physiological responses to infrared sauna blankets. The team measured significant changes in heart rate, blood pressure, and body temperature during 60-minute sessions.
Why it matters
The research aimed to provide a comparative analysis between portable infrared blankets and traditional Finnish sauna heating modalities. Understanding these physiological impacts helps determine if these devices offer comparable health benefits to stationary saunas.
In a St. Mary's trial, 8 participants experienced an increase in heart rate from 83 to 139 beats per minute while using a blanket set to 75 degrees Celsius. Over the 60-minute session, participants lost an average of 1.3 liters of sweat.
The players
St. Mary's University
This academic institution served as the site for the physiological HEAT trial.
The details
Researchers tracked responses including serum interleukin-6 levels, which rose from 0.91 to 1.70 pg/ml during the session. These metrics were compared against control trials where the infrared blanket remained switched off.
Timeline
The pilot study results were published in September 2026.
A separate study involving 24 participants took place in 2024.
The Big Picture
This study updates our understanding of how infrared heat compares to the physiological effects of traditional Finnish sauna heating modalities. By measuring specific biomarkers, the work marks a departure from anecdotal claims toward clinical validation of portable heat therapy.
Users of infrared sauna blankets should be aware that these devices induce significant cardiovascular strain, including elevated heart rates and blood pressure. Those with underlying health conditions should consult a physician before incorporating 60-minute sessions into their routine.
The takeaway
While infrared blankets may show potential for enhancing sleep quality and melatonin production, the physiological intensity of the heat is significant. Prioritize hydration and monitor your physical response, as the core temperature increases are comparable to high-heat exercise.
Further reading
For more on the intersection of temperature and rest, explore our section on Sleep Disorders.
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