Extended-release Sodium Oxybate in Children

Inclusion Criteria: 1. Participants must be under the care of a doctor at the Stanford Sleep Clinic. 2. Participants must have a documented diagnosis of narcolepsy type 1 shown by sleepiness and either: a spinal fluid marker for narcolepsy (hypocretin-1) at a specific level, or a history of sudden loss of muscle control (cataplexy), or a particular genetic marker for narcolepsy, or a sleep study showing a specific sleep pattern for narcolepsy. 3. Parent(s), or guardian(s) have signed a consent form and the child must agree to participate. 4. Participants are on a stable dose of medications Exclusion Criteria: Participants who have any of the following conditions will not be included in the study 1. Uncontrolled mental health problems 2. Uncontrolled sleep problems that lead to sleepiness. 3. Currently having thought about ending one's life or sadness or loss of interest 4. Currently having a problem with illegal drug use 5. Currently pregnant