Sleep Facts is written and edited by Tess Marlow, the pen name of its editor, who is not medically qualified. We are looking for a qualified clinician to review the health pages; their name and qualifications will appear on every page they check.
Each page names the person accountable for it. Our editorial policy explains how pages are researched, graded and corrected.
In this section
- Tess Marlow, editor of Sleep Facts
About Tess Marlow, the pen name of the editor of Sleep Facts: what Tess does, what Tess isn't qualified to do, and how pages are written.
First published 4 November 2026. Spotted an error? Tell us and we'll correct it. Read our editorial policy.