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Related Experiment Videos

The National Sleep Foundation's Sleep Health Index.

Kristen L Knutson1, Julie Phelan2, Michael J Paskow3

  • 1Northwestern University, Chicago, IL.

Sleep Health
|July 16, 2017
PubMed
Summary

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This summary is machine-generated.

The Sleep Health Index (SHI) is a new tool to measure sleep health. Americans scored 76/100, with stress and overall health impacting sleep quality.

Area of Science:

  • Sleep Science
  • Public Health
  • Psychology

Background:

  • Objective sleep measures are not always feasible for research.
  • A validated survey instrument for general sleep health is needed.
  • The National Sleep Foundation developed the Sleep Health Index (SHI).

Purpose of the Study:

  • To develop and validate the Sleep Health Index (SHI).
  • To assess general sleep health in adults in the United States.
  • To identify key predictors of sleep health.

Main Methods:

  • Expert task force identified sleep domains and questions.
  • Survey refined through cognitive testing and pretesting.
  • 28-question survey administered via telephone interviews to nationally representative adult samples (n=2503).

Related Experiment Videos

  • Factor analysis identified 14 questions across 3 domains: sleep quality, duration, and disorders.
  • Data combined to form the overall SHI (0-100 scale).

    • Main Results:

    • Americans achieved an overall SHI score of 76/100.
    • Sub-index scores: disordered sleep (81/100), sleep duration (79/100), sleep quality (68/100).
    • Self-reported stress (β=-0.26) and overall health (β=0.26) were strongest predictors of sleep health and quality.

    Conclusions:

    • The 12-item SHI is a valid and reliable research tool.
    • SHI robustly measures sleep duration, quality, and disorders.
    • SHI assesses the sleep health status of U.S. adults.