Temporal Interference Stimulation of Hypothalamus in Patients With Narcolepsy Type 1

Inclusion Criteria: * Aged 12 to 60 years. * Diagnosis of narcolepsy type 1 according to the International Classification of Sleep Disorders, Third Edition (ICSD-3), confirmed by polysomnography (PSG) and/or Multiple Sleep Latency Test (MSLT) performed within the past 10 years, with the test procedures meeting the minimum technical standards specified in the ICSD-3. * Epworth Sleepiness Scale score \>12 at baseline. * Signed informed consent. Exclusion Criteria: * Presence of other conditions that cause excessive daytime sleepiness, including restless legs syndrome, periodic limb movement disorder, or moderate-to-severe obstructive sleep apnea syndrome, etc. * History of epilepsy, severe neuropsychiatric disorders, or significant cardiac, hepatic, or renal dysfunction. * Pregnancy or current breastfeeding. * Contraindications to MRI or electrical stimulation therapy, such as intracranial metallic foreign bodies, cardiac pacemakers, implantable cardioverter-defibrillators, or cochlear implants.