Last updated: May 18, 2026
Top peptides for sleep
1. DSIP (Delta Sleep-Inducing Peptide)
Nine-amino-acid peptide originally isolated from rabbit brain. Studied for sleep induction and stress modulation. Mixed evidence in human trials — small studies show benefit, larger studies less clear. Sub-Q research dosing 100-300 mcg before bed.
2. CJC-1295 + Ipamorelin
GH-stimulating stack. Increases slow-wave (deep) sleep duration via the natural link between GH release and deep sleep cycles. Dose pre-bedtime to align with natural GH pulse.
3. Epitalon
Pineal tetrapeptide studied for circadian rhythm normalization. May benefit sleep-wake cycle in older adults with disrupted circadian rhythm.
4. Selank (low dose)
Anxiolytic peptide that can indirectly improve sleep by reducing anxiety and stress. Intranasal route makes it convenient for evening dosing.
Evidence ranking
- GH-stimulating peptides (CJC-1295/Ipamorelin): moderate evidence for slow-wave sleep enhancement
- Selank: indirect benefit via anxiolysis, some clinical use in Russia
- DSIP: limited and mixed human evidence
- Epitalon: limited human sleep-specific data; mostly extrapolated from circadian research
Which peptide works best for sleep?<br />
The CJC-1295/Ipamorelin stack has the most consistent reports of improved sleep architecture (more slow-wave sleep). DSIP is the most marketed but has limited human evidence.
Are peptides safer than prescription sleep medications?<br />
Different mechanisms and risk profiles. Peptides don’t carry the dependency or next-day grogginess of benzodiazepines, but evidence for long-term safety is limited.
When should sleep peptides be dosed?<br />
Generally 30-60 minutes before intended sleep. CJC-1295/Ipamorelin’s GH-mediated effect aligns naturally with the deep sleep that follows GH release.
Can sleep peptides be combined?<br />
Yes, with care. Avoid combining multiple anxiolytic peptides simultaneously.