Delta (Phospho) Sleep Inducing Peptide (DSIP-P), a peptide that promotes sustained sleep, elicits alterations in circadian locomotor activity in rats [1] [2] [3].

δ-Sleep Inducing Peptide acetate, a neuropeptide, exhibits antioxidant and anxiolytic properties [1] [2].

δ-Sleep Inducing Peptide (DSIP) is a neuropeptide, with antioxidant and anxiolytic properties.

Melanin Concentrating Hormone, salmon TFA (MCH (salmon) TFA) is a 19-amino-acid neuropeptide discovered in teleost fish's pituitary gland, involved in controlling food intake, energy balance, sleep states, and cardiovascular functions. It acts as a ligand for the orphan G protein-coupled receptors SLC-1/GPR24 and MCHR2.

Boc-D-Trp(For)-OH, a derivative of the amino acid tryptophan with pharmacological properties such as inhibition of growth hormone release, induction of sleep, and anti-inflammatory effects [1] [2], is synthesized through the ammonolysis of Boc-protected D-alanine, followed by cyclization with ninhydrin to form the dipeptide.

NEMURI is a sleep-promoting antimicrobial peptide [1].

Endogenous agonist at orexin receptors (Ki values are 20 and 38 nM for OX1 and OX2 receptors respectively). Stimulates feeding following central administration and may be involved in the control of sleep-wake cycle and other hypothalamic functions.

Orexin B, rat, mouse (Rat orexin B) TFA, an endogenous agonist for orexin receptors, binds to and activates the closely related orphan G protein-coupled receptors OX1-R and OX2-R. This compound is instrumental in stimulating food intake, increasing energy expenditure, and regulating sleep-wake cycles [1] [2] [3].

Cortistatin 14 is a somatastatin-like neuropeptide with neuronal depressant and sleep modulating properties. Cortistatin 14 is present primarily in the cortex and hippocampus.