Delayed Sleep Phase Disorder, also known as delayed sleep phase syndrome, is related to mood disorder and sleep disorder. An important gene associated with Delayed Sleep Phase Disorder is CRY1 (Cryptochrome Circadian Regulator 1), and among its related pathways/superpathways are Neuroscience and PPARA activates gene expression. The drugs Lemborexant and Melatonin have been mentioned in the context of this disorder. Affiliated tissues include brain and spinal cord, and related phenotypes are sleep onset insomnia and Reduced mammosphere formation