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Evidence-rated reference Updated August 2026
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Pepteyes .com

Peptides for sleep, ranked by evidence

Better sleep is one of the most consistently reported effects across the whole library, and one of the least studied. It is also the effect most vulnerable to expectation: people who have just started an expensive protocol tend to notice a good night.

Compounds people use for this
5
Approved for any indication
1
Preliminary evidence or none
2
Best-evidenced
Tirzepatide

A rank is a statement about evidence, not advice. Position here is calculated from the published evidence rating, regulatory standing and documented risks on each monograph. It says nothing about whether a compound is appropriate for you, and several of the best-evidenced entries are prescription medicines that carry serious warnings. Nothing on this page is a recommendation, and no page on this site states a dose.

Sleep improved by a compound that also raises fasting glucose is a trade, not a win. The monograph for each entry states what else moved.

Ranked by the same evidence score used across the site, restricted to the compounds people actually take for this. A compound near the bottom is not necessarily useless — it is untested, which is a different and more common situation. Every row links to a monograph that says exactly what was studied and in whom.

# Compound Status Evidenceout of 100 Riskout of 100 Gaprisk − evidence Why it sits here
1 Tirzepatide: 39 amino acids (from the sequence record), fatty-acid chain · Metabolic & Weight · evidence 5 of 5 Tirzepatide Metabolic & Weight · Mounjaro FDA Approved 93 63 -30 FDA Approved. 3 benefit claims on strong human evidence. 3 serious or common risks.
2 Sermorelin: 29 amino acids (from the sequence record) · Growth Hormone Axis · evidence 3 of 5 Sermorelin Growth Hormone Axis · GHRH (1-29) Limited Approval 54 43 -11 Limited Approval. 1 benefit claim on strong human evidence. 1 serious or common risk.
3 MK-677 (Ibutamoren): peptidomimetic / small molecule · Growth Hormone Axis · evidence 3 of 5 MK-677 (Ibutamoren) Growth Hormone Axis · Ibutamoren Not a Peptide 49 77 +28 Not a Peptide. 2 benefit claims on strong human evidence. 4 serious or common risks.
4 Epitalon: 4 amino acids (from the sequence record) · Longevity & Mitochondrial · evidence 2 of 5 Epitalon Longevity & Mitochondrial · Epithalon Research Use Only 30 81 +51 Research Use Only. No benefit claim on strong human evidence. 4 serious or common risks.
5 DSIP: 9 amino acids (from the sequence record) · Bone, Muscle & Other · evidence 1 of 5 DSIP Bone, Muscle & Other · Delta Sleep-Inducing Peptide Research Use Only 15 73 +58 Research Use Only. No benefit claim on strong human evidence. 2 serious or common risks.
How this ranking is built
Evidence rating15 points each, up to 75 The published 1-5 rating, multiplied by fifteen. This is most of the score, because it is the thing the whole site is built to assess.
Regulatory standingFDA Approved 12 · Limited Approval 7 · In Clinical Trials 4 · Cosmetic Ingredient 2 Approval by a major regulator means an agency has reviewed the trial data and agreed. Approval elsewhere, or an active registered trial, counts for less. A research-use-only label counts for nothing.
Well-supported benefit claims2 points each, up to 10 Two points for each benefit on the monograph carried by strong human evidence, up to five of them. A long list of weakly-supported claims adds nothing here.
Hard clinical endpointsup to 3 Three points where a well-supported claim rests on something that happened to a patient — a death, a fracture, a heart attack, a transplant, a remission — rather than on a number that moved in a blood test. This is the site's published tie-breaker between two drugs that both have strong trials.

Membership is computed from each monograph's category, tags and benefit claims rather than chosen by hand, so a compound added to the library appears here on its own. The score is the site-wide evidence score, not a score for this goal specifically — a compound approved for something else does not get credit here for that approval beyond its regulatory standing. Read the evidence scale for what the tiers mean.

The other things people ask about

See also the whole library ranked by evidence and by documented risk.