How we work
Editorial Policy
How Yullsz researches, writes, and reviews its content — and how we stay independent.
Last updated: January 12, 2026
Trust is the only thing that makes a publication worth reading. This page explains how we research, write, review, and maintain everything on Yullsz — and how we keep our recommendations independent.
How we choose what to cover
We write about the sleep problems real readers have: winding down at night, falling asleep faster, staying asleep, and building a bedroom that helps rather than fights you. Ideas come from our own routines, reader questions, and the recurring struggles we see people describe. We do not chase trends for traffic's sake.
How we research and write
Every article is written or edited by a named member of our team who has read the research and lived with the topic. We read peer-reviewed sleep studies and guidance from recognised sleep and health bodies, and we favour these primary sources over recycling what other sites say. When we recommend a mattress, pillow, or piece of sleep tech, we have tested it ourselves — usually across several nights in our own bedrooms. Claims that depend on evidence are linked to their source, and we're clear about where the science is still uncertain.
Editing and review
Before publication, each piece is reviewed for accuracy, clarity, and usefulness. We ask a simple question of every draft: would this genuinely help a reader, or is it just filling space? If it is the latter, it does not run.
Our use of AI tools
Our articles are written and edited by people. We may use software for spell-checking, research, or suggesting outlines, but a human writer is responsible for the substance, accuracy, and final wording of everything we publish. We do not publish auto-generated content.
Independence and advertising
Yullsz is funded by advertising and, occasionally, affiliate links. To protect your trust:
- We never accept payment to give a positive review or to feature a product in editorial content.
- Advertising is clearly distinguishable from articles.
- Affiliate relationships never change our verdict — see our disclaimer for the full disclosure.
Corrections
We get things wrong sometimes, and when we do, we fix them quickly and transparently. If you spot an error, email [email protected] or use our contact form. Substantive corrections are noted on the article.
Updates
Because sleep research and products evolve, we revisit popular guides and refresh them. When an article is meaningfully updated, the publication date reflects the most recent revision.
Questions
If anything about how we work is unclear, we'd genuinely like to hear from you. Reach us any time at [email protected].