Delta Sleep-Inducing Peptide, discovered in 1974. Researched for improving sleep quality, particularly delta wave (deep) sleep and REM sleep.
Role: Supports sleep
Full peptide profile All stacksSleep 
The Deep Sleep Stack
Sleep is when your body repairs itself — growth hormone is released in pulses during deep sleep, cellular repair happens, memories consolidate. This stack targets the quality of that sleep from two angles. DSIP (Delta Sleep-Inducing Peptide) was literally discovered for its ability to induce delta wave sleep — the deepest, most restorative phase. It normalizes sleep architecture and has shown promise for narcolepsy and insomnia research. MK-677 dramatically increases slow-wave sleep in clinical studies — subjects on MK-677 spend significantly more time in deep sleep stages. Together they target both the triggering of deep sleep (DSIP) and the extension of it (MK-677).
🐾 Griffin Says...
Sleep is arguably the most underrated recovery tool in existence, and both of these peptides have solid data specifically for sleep quality improvement. DSIP does the inducing, MK-677 extends the time spent in deep sleep. The MK-677 appetite increase and water retention are things to factor into research planning.
Peptides in this stack
An oral growth hormone secretagogue (technically a small molecule, not a peptide). Researched for GH and IGF-1 elevation, muscle mass, sleep quality, and bone density.
Role: Supports sleep
Full peptide profileFor research purposes only. Nothing on this page is medical advice or a recommendation to use these compounds. Always consult a qualified professional before making health decisions.
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