Sleep Med Rev February 2005 PMID 15649737

Effects of exogenous melatonin on sleep: a meta-analysis.

Amnon Brzezinski, Mark G Vangel, Richard J Wurtman, Gillian Norrie, Irina Zhdanova, Abraham Ben-Shushan, Ian Ford

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Peak: 3 in Sep 2025

across 4 sources since Sep 2020

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AI synopsis

What people are saying

Overall, discussions present the research as supportive of melatonin’s sleep benefits, with phrases like 'small positive effect' and references to dose-response findings indicating interest and engagement. The tone and word choice suggest cautious optimism rather than excitement, focusing on specifics like 'plateau effect' and side effects to evaluate the significance of the findings.

AgreementModerate agreement

Most posts seem to acknowledge the positive findings of the meta-analysis, with some recognizing effects like increased sleep duration and faster sleep onset.

InterestModerate interest

Discussions show moderate interest, with users referencing specific findings and related studies, indicating engagement with the research's details.

EngagementModerate engagement

Comments include mentioning dose-response relationships and effects of different dosages, reflecting a relatively deep engagement with the topic.

ImpactModerate impact

While the posts highlight the beneficial effects of melatonin, they mainly discuss incremental improvements and side effects, suggesting a moderate perceived impact rather than a revolutionary change.

Abstract in brief

The meta-analysis reviewed 17 studies on the effects of exogenous melatonin on sleep, finding that it significantly improves sleep by reducing sleep onset latency by about 40 minutes, increasing sleep efficiency by 22%, and extending total sleep duration by roughly 128 minutes.
Most studies involved healthy individuals or those with insomnia, and when focusing only on these groups, the benefits remained consistent—showing reductions in sleep onset time, and increases in sleep efficiency and total sleep duration.
Overall, the analysis suggests that melatonin can effectively promote better sleep, especially by helping people fall asleep faster and sleep longer, though study differences make the exact effects vary.]

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ThailandNumber1

@ThailandNumber1 · X

RT @KeithSakata: Papers: https://t.co/WYfzKUebzd https://t.co/H6WJ3AVcpp? https://t.co/j7qNk5bTpf

Sep 26, 2025 · 2 shares · 245 followers View post →

Gisela Martina @giselamartina3.bsky.social

@GiselaMartina3 · X

RT @KeithSakata: Papers: https://t.co/WYfzKUebzd https://t.co/H6WJ3AVcpp? https://t.co/j7qNk5bTpf

Sep 26, 2025 · 2 shares · 293 followers View post →

Keith Sakata, MD

@KeithSakata · X

Papers: https://t.co/WYfzKUebzd https://t.co/H6WJ3AVcpp? https://t.co/j7qNk5bTpf

Sep 25, 2025 · 30 likes · 2 shares · 11,618 followers View post →

niplav

@niplav_site · X

@FellowHominid Another one¹ also claims a small but positive (+12.8 minutes) effect on sleep duration. ¹: https://t.co/mUfX0wE0yh https://t.co/992tWP4N0g

Jan 19, 2024 · 1 like · 1,050 followers View post →

Jake Adler

@jakeradler · X

@MadhavMalhotra_ Here are a few

Apr 6, 2022 · 5,477 followers View post →

Gemma Goldie

@gemagoldie · X

Sep 11, 2020 · 28,622 followers View post →

Effects of exogenous melatonin on sleep: a meta-analysis.

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