Home Sleep Test - Resource for Clinics

Thank you for choose Belun Ring home sleep test. This page will give you the resource for running the test and interpreting the results.  Feel free to contact us by Email or WhatsApp if you have any questions. 


Test Duration

  • Minimum 4 hours of sleep is required for a valid sleep study.  6-hour recording is recommended.  
  • Testing for 3 nights is recommended for suspected Obstructive Sleep Apnea.  Multiple night testing help reduce first-night effect and compare night-to-night variation. 

Exclusion Criteria

  • Patients on home oxygen, non-invasive ventilator, diaphragmatic pacing, or nerve stimulator
  • Patients with pacemaker, defibrillator, left ventricular assist device, or status post cardiac transplantation
  • Patients with atrial fibrillation


  • Avoid alcohol and caffeine during the afternoon and evening before test.
  • Don't nap during the day.
  • Effect of sleep medicines should be noted.  Certain classes of sleep medicines induce muscle relaxation and more respiratory events. 


    Sample Report

    Clinical Validation

    • Gu W, Leung L, Kwok KC, Wu I-C, Folz RJ, Chiang AA. Belun Ring Platform: a novel home sleep apnea testing system for assessment of obstructive sleep apnea. J Clin Sleep Med. 2020;16(9):1611–1617. https://doi.org/10.5664/jcsm.8592
    • Yeh E, Wong E, Tsai C-W, Gu W, Chen PL, Leung L, et al. (2021) Detection of obstructive sleep apnea using Belun Sleep Platform wearable with neural network-based algorithm and its combined use with STOP-Bang questionnaire. PLoS ONE 16(10): e0258040. https://doi.org/10.1371/journal.pone.0258040

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      Patient Resource