Composition and method for improving sleep duration and quality

An intervention for sleep disorders comprises collagen, a gelatin peptide, or the amino acid glycine; L-theanine; lactucopicrin, deoxylactucopicrin, or another lactucopicrin derivative; hyaluronic acid; epigallocatechin gallate; and quinic acid. The intervention helps regulate pro-inflammatory biomarkers that are often associated with insomnia development and progression. These biomarkers include cytokines and enzymes associated with tryptophan degradation. Inhibition of these enzymes and cytokines improves tryptophan availability and sleep quality, and allows individuals to sleep better with fewer side effects. The novel composition promotes high-quality, deep sleep.