Korean Journal of Psychosomatic Medicine (정신신체의학)

Korean Psychosomatic Society (한국정신신체의학회)
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A Preliminary Study on the Effectiveness of Far-Infrared Emitting Ceramic Mattresses in Improving Sleep Quality

  • Seondeuk Kim (Republic of Korea Army) ;
  • Minho Kim (Liberal Arts Education University College, Sungkyunkwan University) ;
  • Wooyoung Im (Department of Psychiatry, Konyang University Hospital) ;
  • Hyeyun Kim (Department of Neurology, Internatonal St. Mary's Hospital, College of Medicine, Catholic Kwandong University)
  • Received : 2023.11.14
  • Accepted : 2023.12.27
  • Published : 2023.12.31
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Abstract

Objectives : Far-infrared (FIR) lights have been investigated for sleep quality intervention. We sought to measure the advantageous effects of FIR in sleep using polysomnographic data as the objective outcomes. Methods : The ten healthy volunteers were enrolled in a single-center, prospective, patient-blind, single-arm trial. Individuals slept on a sham mattress and a FIR emitting mattress with polysomnography for one night each. Results : Sleep efficiency showed an increasing trend but was not statistically significant. PSQI-K significantly decreased (p=0.013). The latency to REM of the baseline was shorter than that of the intervention (p=0.008). Though there was no statistical significance, Stage N1 and N2 were shortened, and Stage N3 was prolonged after the intervention compared to the baseline. Conclusions : The FIR-emitting mattresses improved sleep quality on self-reported insomnia. We suggested the candidate for the markers altered by the FIR therapy, such as the normalization of REM latency and increased N3 sleep.

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References

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