DSIP is a peptide that helps you get into really deep, restorative sleep, which is where the body does most of its healing. It doesnt just knock you out like a sleep aid, it helps improve the quality DSIP (Delta SleepInducing Peptide) is a naturally occurring neuropeptide first isolated in 1974. It's best known for its potential role in regulating sleep, stress, and neuroendocrine function. Here's a clear breakdown of DSIP (Delta Sleep Inducing Peptide) Research Peptide Midwest Peptide DSIP: The Sleep Peptide That Changes How Canadians Rest