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A sleep study, called polysomnography, is a diagnostic test that records brain waves, breathing, and heart rate overnight.

the verdict
SUPPORTED
the evidence backs this
Recorded sources
7 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that a sleep study, called polysomnography, is a diagnostic test that records brain waves, breathing, and heart rate overnight?

Yes. A Cleveland Clinic reference states a sleep study is a diagnostic test recording multiple body systems, including the brain, heart and breathing, usually over one night. Other peer-reviewed sources confirm polysomnography is an overnight diagnostic sleep study, though they give fewer specifics about what it records.

Verdict: SUPPORTED · 7 sources for, 0 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 7
Polysomnography
2026
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Polysomnography. (2026). doi.org. https://doi.org/10.1093/9780197619537.003.0009

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More for · 6
A survey on sleep assessment methods.
2018
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V, I., J, S., & O, C. (2018). A survey on sleep assessment methods.. doi.org. https://doi.org/10.7717/peerj.4849

Sleep Study: What It Is, What To Expect, Types & Results
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Sleep Study: What It Is, What To Expect, Types & Results. (n.d.). my.clevelandclinic.org. https://my.clevelandclinic.org/health/diagnostics/12131-sleep-study-polysomnography

Correct CPT Coding, Billing, and Documentation in Sleep Medicine
2007
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Correct CPT Coding, Billing, and Documentation in Sleep Medicine. (2007). doi.org. https://doi.org/10.1007/978-1-59745-421-6_29

A pilot study to assess a novel screening questionnaire for central sleep apnea in patients undergoing overnight diagnostic polysomnography
2026
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Kaur, A., Ibrar, A., Nadhim, A., Marquez, F., Persaud, K., Dubovan, B., Alkhatatneh, A., Paliwal, M., Grove, M., Charles, J. R., Goldstein, D., Thomas, F. P., & Gupta, D. (2026). A pilot study to assess a novel screening questionnaire for central sleep apnea in patients undergoing overnight diagnostic polysomnography. doi.org. https://doi.org/10.1007/s11325-026-03715-x

Adults with ADHD and Sleep Complaints: A Pilot Study Identifying Sleep-Disordered Breathing Using Polysomnography and Sleep Quality Assessment
2006
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H., S. C. B., J., T. R., Megan, A., Christine, P., & Joseph, B. (2006). Adults with ADHD and Sleep Complaints: A Pilot Study Identifying Sleep-Disordered Breathing Using Polysomnography and Sleep Quality Assessment. eric.ed.gov. https://doi.org/10.1177/1087054705282121

Current and future strategies for diagnostic and management of obstructive sleep apnea
2021
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Current and future strategies for diagnostic and management of obstructive sleep apnea. (2021). doi.org. https://doi.org/10.1080/14737159.2021.2002686

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