How this page evolved

Every published version is kept. Each entry shows what changed and why. Earlier versions can be restored by moderators, but only if the material they rely on is still available.

1. Revision 3Sep 30, 2026, 6:25 PMLive

   Added jet lag evidence, product-content testing and a comparison of where melatonin works best.

   • · Added section “For jet lag and body-clock problems: a real effect”.
   • · Added section “What's actually in the bottle”.
   • · 1 new source cited.
   • · Key takeaways were added.
   • · 4 new pieces of guidance for specific situations.
   • · 1 new open question.
2. Revision 2Sep 30, 2026, 6:25 PM

   First brief from the melatonin meta-analysis and the AASM insomnia guideline.

   • · The main finding was rewritten.
   • · The finding is now labelled “evidence” (was “interpretation”).
   • · Added section “For everyday insomnia: a small effect”.
   • · 4 new sources cited.
   • · The note on uncertainty changed.
   • · 2 new open questions.
3. Revision 1Sep 30, 2026, 6:25 PM

   Created the Sylo.

   • · First published version.