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A-F grade per outcome, combining overall evidence with goal-specific relevance. A = strong evidence; F = insufficient. Hover a badge for details.
Direct side-by-side from the meta-analysis. Each row is an outcome where ≥2 of your selected supplements have pooled data. Best effect per row highlighted.
| Outcome | Melatonin | Tryptophan |
|---|---|---|
| Fall asleep faster — Sleep Onset Latency − better · minutes | −17.7best weak | −7.5 weak · CI ∋ 0 |
| Improve deep sleep quality — Sleep Quality Psqi − better · PSQI points | +0.1 weak · CI ∋ 0 | −0.9best weak |
| Stay asleep longer — Wake After Sleep Onset − better · minutes | −2.0best weak | −17.6 weak · CI ∋ 0 |
1mg
Before bed
Immediate-release tablet or sublingual
1500mg
Before bed
L-Tryptophan capsules
Same night
1-3 days
Next morning
30-60 minutes
1-2 weeks
1-2 weeks
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