DSIP Uncovered A Biohacker's Guide to Restorative Sleep and High Performance Living: Transform Stress, Sleep Deeper, and Elevate Athletic Recovery (Peptide & SARMs Guides): Pierce, Gavin: 9798316057344: Amazon.com: Books 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 Apex Peptide Supply Delta SleepInducing Peptide (DSIP) is a small naturally occurring peptide that was first identified in the 1970s and is associated with regulating sleep, particularly deep (delta) sleep phases. It's composed of 9