Delta Sleep-Inducing Peptide, or DSIP, is a neuropeptide that has been studied since the 1970s for its potential role in sleep regulation. It is naturally found in the brain and some peripheral tissues. Research suggests that DSIP may promote restful sleep by modulating various neurotransmitters and hormones. Specifically, it may reduce stress hormone levels like cortisol and promote relaxation. Unlike some sleep aids, DSIP is not thought to induce drowsiness directly but rather helps regulate sleep patterns.
