A member of our medical expert team provides a final review of the content and sources cited for every guide, article, and product review concerning medical- and health-related topics.

These internal links are intended to improve ease of navigation across the site, and are never used as original sources for scientific data or information.

Some guides and articles feature links to other relevant Sleep Foundation pages.

Each guide and article includes a comprehensive bibliography with full citations and links to the original sources.

All scientific data and information must be backed up by at least one reputable source.

These include peer-reviewed journals, government reports, academic and medical associations, and interviews with credentialed medical experts and practitioners.

We only cite reputable sources when researching our guides and articles.

The Sleep Foundation fact-checking guidelines are as follows: Our editors and medical experts rigorously evaluate every article and guide to ensure the information is factual, up-to-date, and free of bias. The Sleep Foundation editorial team is dedicated to providing content that meets the highest standards for accuracy and objectivity.

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