Sleep Disorder, also known as non-organic sleep disorder, is related to idiopathic hypersomnia and narcolepsy 1, and has symptoms including back pain, cachexia and cyanosis. An important gene associated with Sleep Disorder is HCRT (Hypocretin Neuropeptide Precursor), and among its related pathways/superpathways are Peptide hormone metabolism and Circadian Clock. The drugs Tramadol and Ketamine have been mentioned in the context of this disorder. Affiliated tissues include brain and heart, and related phenotypes are nervous system and homeostasis/metabolism