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.
- Revision 6Oct 4, 2026, 8:41 AMLiveAI-organised, reviewed
Added three newer sources: a large international community study linking frequent in-bed device use to more sleep disturbance and daytime impairment, a 48,432-respondent adolescent study tying higher screen time to poorer sleep quality, and a narrative review finding no clinical support for blue-light-filtering lenses. Kept the existing lab-versus-real-world framing and the finding that Night Shift didn't help.
- · The main finding was rewritten.
- · Updated “The case against: light delays the body clock”.
- · Updated “The case for perspective: small effects in everyday life”.
- · Updated “Do night-mode filters help?”.
- · 4 new sources cited.
- · The note on uncertainty changed.
- · The key takeaways were revised.
- · 2 new pieces of guidance for specific situations.
- · 1 new open question.
- Revision 5Sep 30, 2026, 7:41 PM
Removed a survey poll that wasn't a close enough match to this topic.
- · Minor wording changes.
- Revision 4Sep 30, 2026, 7:36 PM
Added a reader poll shown alongside published survey figures.
- · Minor wording changes.
- Revision 3Sep 30, 2026, 6:25 PM
Added the systematic review, the Night Shift trial, and practical guidance for different sleepers.
- · Added section “Do night-mode filters help?”.
- · Key takeaways were added.
- · 3 new pieces of guidance for specific situations.
- Revision 2Sep 30, 2026, 6:25 PM
First brief contrasting the lab evidence on light with population studies.
- · The main finding was rewritten.
- · Added section “The case against: light delays the body clock”.
- · Added section “The case for perspective: small effects in everyday life”.
- · 4 new sources cited.
- · The note on uncertainty changed.
- · 2 new open questions.
- Revision 1Sep 30, 2026, 6:25 PM
Created the Sylo.
- · First published version.