L-Theanine vs Melatonin for sleep
Short answer: For sleep, users rate them about the same: 78% report improvement with L-Theanine (370 reports) and 78% with Melatonin (915 reports).
L-Theanine has 18 meta-analyses and 78 randomized trials on PubMed; Melatonin has 688 and 1,128.
Based on 3,475 reports about L-Theanine and 1,370 about Melatonin. Not medical advice.
| L-Theanine Supplement | Melatonin Supplement | |
|---|---|---|
| Users say it helped | 65%helped1,807 reports · high confidence | 42%helped726 reports · high confidence |
| Verdict | Mostly positive | Mixed |
| Research | AResearch: Strong | AResearch: Strong |
| Meta-analyses / RCTs | 18 / 78 | 688 / 1,128 |
| Mainly used for | ||
| Anxiety % reporting improvement | 91% (1289) | 44% (16) |
| Sleep % reporting improvement | 78% (370) | 78% (915) |
| Focus % reporting improvement | 88% (501) | 38% (8) |
| Mood % reporting improvement | 77% (223) | 32% (37) |
| Energy % reporting improvement | 68% (97) | 32% (25) |
| Common side effects | drowsiness, vivid dreams, fatigue, headache | drowsiness, vivid dreams, fatigue, depression |
| Typical dose reported | 200 mg / bedtime | 0.5 mg / bedtime |
This meta-analysis provides evidence that theanine plus caffeine, and theanine alone, could be beneficial for cognitive and mood outcomes. More research using tea beverages or tea-equivalent bioactive doses and research in free-living participants is needed.
Nutr Rev, 2025 ↗“This morning was my first time taking this combination along with my other daily vitamins and wow, what a difference it has made in my overall mood and anxiety!”
Overall, eszopiclone and lemborexant had a favorable profile, but eszopiclone might cause substantial adverse events and safety data on lemborexant were inconclusive. Doxepin, seltorexant, and zaleplon were well tolerated, but data on efficacy and other important outcomes were scarce and do not allow firm conclusions. Many licensed drugs (including benzodiazepines, daridorexant, suvorexant, and trazodone) can be effective in the acute treatment of insomnia but are associated with poor tolerability, or information about long-term effects is not available. Melatonin, ramelteon, and non-licensed
Lancet, 2022 ↗“I have taken it nightly for 19 years. Doses ranging from .1 to 10mg. Right now I take 3mg per night. It helps me sleep.”
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Percentages come from first-hand user reports and are not clinical outcomes. Talk to a doctor before starting, stopping or combining anything. How we rate