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Insomnia

Last reviewed: 22 Jan 2025
Last updated: 24 Jan 2025

Summary

Definition

History and exam

Key diagnostic factors

  • sleep partner complaints
  • delayed sleep onset
  • multiple or long awakenings
Full details

Other diagnostic factors

  • impairment of functioning
  • accidents
  • decreased sleep time
  • daytime napping
  • thyrotoxicosis
  • chronic pain
  • restless legs syndrome
  • obstructive sleep apnea
Full details

Risk factors

  • female sex
  • advanced age
  • chronic medical conditions
  • chronic pain
  • psychiatric illness
  • alcohol or substance misuse
  • stimulant use
  • poor sleep hygiene
  • traumatic brain injury
  • neuropsychiatric illness
  • use of certain medications
  • recent travel across time zones
  • night work
  • hyperthyroidism
  • participation in elite sport
  • sedentary behavior
Full details

Diagnostic tests

1st tests to order

  • sleep diary
  • Pittsburgh Sleep Quality Index (PSQI)
  • Insomnia Severity Index (ISI)
  • Stanford Sleepiness Scale (SSS)
  • Epworth Sleepiness Scale (ESS)
  • Athens Insomnia Scale (AIS)
  • Generalized Anxiety Disorder-7 (GAD-7)
  • Patient Health Questionnaire-9 (PHQ-9)
Full details

Tests to consider

  • polysomnography (PSG)
  • actigraphy
  • thyroid-stimulating hormone (TSH)
  • CBC and iron studies
  • urine or blood substance use panel
Full details

Treatment algorithm

ACUTE

acute insomnia

ONGOING

chronic insomnia

Contributors

Authors

Joshua Hyong-Jin Cho, MD, PhD

Health Sciences Clinical Professor

Director, UCLA Insomnia Clinic

Cousins Center for Psychoneuroimmunology

Department of Psychiatry & Biobehavioral Sciences

David Geffen School of Medicine at UCLA

Los Angeles

CA

Disclosures

JHC is an author of a reference cited in this topic.

Paul Barkopoulos, MD, MPH

Clinical Professor

Department of Psychiatry & Biobehavioral Sciences

David Geffen School of Medicine at UCLA

Los Angeles

CA

Disclosures

PB is an author of a reference cited in this topic.

Anthony E. Reading, MPhil, PhD

Clinical Professor

Department of Psychiatry & Biobehavioral Sciences

David Geffen School of Medicine at UCLA

Los Angeles

CA

Disclosures

AER declares that he has no competing interests.

Acknowledgements

Dr Joshua Hyong-Jin Cho, Dr Paul Barkopoulos, and Dr Anthony E. Reading would like to gratefully acknowledge Dr John W. Winkelman, Dr Teofilo Lee-Chiong, and Dr Vipin Malik, previous contributors to this topic.

Disclosures

JWW has received honoraria for consulting to Avadel, CVS, Eisai, and Merck, and research grants from Merck and the RLS Foundation. TLC is the Chief Medical Liaison for Philips, a company that makes devices to treat sleep apnea. VM received research funding from Philips Respironics for a study on COPD-OSA overlap.

Peer reviewers

Karl Doghramji, MD

Director

Sleep Disorders Center

Thomas Jefferson University Hospital

Philadelphia

PA

Disclosures

KD is a speaker for Sanofi-Aventis, King Pharmaceuticals, Takeda Pharmaceuticals, Sepracor, and Pfizer; a consultant for Sanofi-Aventis, Takeda Pharmaceuticals, Sepracor, Pfizer, and Neurocrine Biosciences; and has stock in Merck.

Chiadi U. Onyike, MD, MHS

Assistant Professor

Geriatric Psychiatry and Neuropsychiatry

The Johns Hopkins Hospital

Baltimore

MD

Disclosures

CUO declares that he has no competing interests.

Roy Goldberg, MD

Medical Director

Kings Harbor Multicare Center

Bronx

NY

Disclosures

RG declares that he has no competing interests.

Craig Sawchuk, MD

Affiliate Assistant Professor

Department of Psychiatry and Behavioral Sciences

University of Washington Medical Center

Seattle

WA

Disclosures

CS declares that he has no competing interests.

David Cunnington, MD

Director

Melbourne Sleep Disorders Centre

Melbourne

Victoria

Australia

Disclosures

DC has received consulting fees from Sanofi-Aventis and Lundbeck, and honoraria for speaking from Sanofi-Aventis.

  • Differentials

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    • Periodic limb movement disorder (PLMD)
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