Peptide Schedule

Best Peptides for Sleep

The most effective peptides for improving sleep quality, onset, and deep sleep duration — from direct sleep peptides to GH secretagogues that enhance nocturnal GH release.

1

DSIP

Sleep~7-8 min free plasma; ~7-8 hours carrier-bound (functional duration) half-life

Delta Sleep-Inducing Peptide is the only peptide specifically named for its sleep effects. It promotes delta wave (deep) sleep, normalizes circadian rhythm, and reduces stress-related insomnia.

Pros
  • Directly promotes deep/delta wave sleep
  • Normalizes disrupted sleep patterns
  • Reduces stress-related insomnia
  • Modulates cortisol levels
Cons
  • Limited human clinical data
  • Half-life is short (~15 min IV)
  • Variable response between individuals
View DSIPguide →DSIPcalculator →
2

Epithalon

Anti-Aging~30 minutes (plasma) half-life

While primarily an anti-aging peptide, Epithalon normalizes melatonin production from the pineal gland. Many users report dramatically improved sleep quality and circadian rhythm regulation within the first few days.

Pros
  • Normalizes natural melatonin production
  • Improves circadian rhythm
  • Sleep improvements often noticed within days
  • Short cycle with lasting effects
Cons
  • Not primarily a sleep peptide
  • Effects are secondary to anti-aging mechanism
  • Requires cycling
View Epithalonguide →Epithaloncalculator →
3

Ipamorelin

Growth Hormone~2 hours half-life

Ipamorelin's GH-releasing effect is strongest when taken before bed, amplifying the natural nocturnal GH pulse. This leads to deeper, more restorative sleep and better recovery.

Pros
  • Amplifies natural nighttime GH pulse
  • Improves sleep quality indirectly
  • Clean profile — no cortisol or anxiety
  • Dual benefit: sleep + recovery
Cons
  • Indirect sleep mechanism (via GH)
  • Requires empty stomach before bed
  • Best results when stacked with CJC-1295
View Ipamorelinguide →Ipamorelincalculator →
4

Selank

Cognitive~2-3 min (IV) half-life

Selank modulates GABA and serotonin for anxiolytic effects without sedation. For users whose sleep issues stem from anxiety or racing thoughts, Selank can dramatically improve sleep onset.

Pros
  • Reduces anxiety that prevents sleep
  • No sedation or grogginess
  • Available as nasal spray
  • Non-addictive anxiolytic
Cons
  • Only helps anxiety-related sleep issues
  • Not a direct sleep aid
  • Effects vary by individual
View Selankguide →Selankcalculator →

How We Ranked These

Ranked by direct impact on sleep architecture, breadth of evidence, and practical accessibility. Peptides that improve deep sleep duration and sleep onset score highest.

Beginner Recommendation

Try Ipamorelin before bed for better sleep + GH release. Add DSIP if you need direct sleep improvement, or Selank if anxiety is the root cause.

View Growth Hormone Stack→

Frequently Asked Questions