Patients with narcolepsy plus cataplexy and low hypocretin: 50.34 (46.63). Patients with cataplexy and normal hypocretin: 47 (39.8). Patients with narcolepsy without cataplexy: 35 (40.41). Patients with idiopathic CNS hypersomnia: 42.67 (26.67). Controls: 45.34 (48.85). Here, HCRT is linked to Cataplexy.