Melatonin Sleep Quality Meta-analysis: What the Evidence Says

Quick Answer

Melatonin Sleep Quality Meta-analysis has 2 source documents in the current Migaku evidence database. The strongest available sources in this first pass are systematic review, randomized trial, so conclusions should be framed as evidence-aware guidance rather than medical advice.

Key Takeaways

• This page is generated only from sources stored in the Migaku evidence knowledge base.
• Current evidence mix: 1 systematic review, 1 randomized trial.
• Claims should be interpreted with the source type, study design, population, and publication date in mind.
• This article is educational and does not replace care from a qualified clinician.

Evidence Map

What The Sources Report

• A recent systematic review analyzing various sleep aids found zolpidem, fascia iliaca compartment block with dexmedetomidine, and perioperative methylprednisolone to improve sleep quality. While the previous systematic review briefly discussed melatonin, the effect of exogenous melatonin remains unclear. [Muacevic Alexander (2026); evidence level 1]
• Evidence from a recent meta-analysis of sleep disorders indicates that insomnia affects approximately 25% of the Indian population, and nearly 15% of otherwise healthy individuals report sleep-related problems such as insomnia and obstructive sleep apnea, highlighting sleep disturbances as an important and potentially underrecognized public health concern in the country. [Thanawala Shefali (2026); evidence level 2]
• Poor sleep quality, characterized by prolonged sleep latency and frequent nocturnal awakenings, is associated with increased fatigue and has been linked to a broad range of adverse health outcomes, including impairments in attention, memory, and learning, as well as an increased risk of mood disorders (such as anxiety and depression) and metabolic disorders (including obesity and diabetes). [Thanawala Shefali (2026); evidence level 2]

How To Read This Evidence

Evidence level 1 generally reflects systematic reviews or meta-analyses. Level 2 includes randomized trials, guidelines, or public-health guidance. Level 3 usually reflects observational or narrative-review evidence. Level 4 is weaker or early-stage evidence. The level is a sorting aid, not a final quality grade.

Practical Interpretation

There is at least one systematic-review style source in the current set, so it deserves more weight than single-study evidence. There is trial evidence in the current set, but population and intervention details still matter. For melatonin sleep quality meta-analysis, the next editorial step is to add more targeted sources and separate strong findings from early or indirect evidence.

Limits Of This First Pass

This is a small-batch MVP article. It uses the first ingested sources for this topic and should be expanded with more targeted searches, license review, and human editorial checks before being treated as a definitive review.

References

• Muacevic Alexander (2026). Evaluating Whether Melatonin Impacts Postoperative Sleep Following Total Joint Arthroplasty: A Systematic Review and Meta-analysis of Randomized Controlled Trials. DOI: 10.7759/cureus.107734. PMCID: PMC13205452. PMID: 42205627. License: CC BY 4.0. https://pmc.ncbi.nlm.nih.gov/articles/PMC13205452/
• Thanawala Shefali (2026). Efficacy and Safety of Sustained-Release Melatonin Capsules (2 mg) in Healthy Adults with Poor Sleep Quality: A Randomized, Double-Blind, Placebo-Controlled Trial. DOI: 10.3390/clockssleep8020031. PMCID: PMC13297780. PMID: 42345841. License: CC BY 4.0. https://pmc.ncbi.nlm.nih.gov/articles/PMC13297780/

Safety Note

Health information can change, and individual risk depends on medical history, medications, pregnancy status, age, and diagnosis. Talk with a qualified clinician before changing treatment, supplement, or medication routines.