3 peptides researched for sleep.
Sleep peptides target the neurological pathways that regulate sleep architecture. the cycling between light sleep, deep sleep, and REM stages. Poor sleep quality is linked to accelerated aging, impaired recovery, weakened immunity, and cognitive decline. Peptide-based approaches aim to improve sleep quality without the dependence risks of traditional sleep medications.
DSIP (Delta Sleep-Inducing Peptide) is the primary sleep-specific peptide, named for its ability to promote delta-wave (deep) sleep in research. It was first isolated from rabbit brain tissue in the 1970s and has been studied for insomnia and stress-related sleep disruption. Growth hormone secretagogues like CJC-1295 and MK-677 also improve sleep indirectly. GH is released primarily during deep sleep, and amplifying this pulse can enhance sleep architecture.