Table 2.

Conditions to consider in the differential diagnosis of narcolepsy [4, 63]

Disorder type	Specific disorder
Sleep disorders	Idiopathic hypersomnia Insufficient sleep/poor sleep hygiene Obstructive sleep apnea REM sleep behavior disorder Delayed sleep phase disorder Shift-work sleep disorder Insomnia
Psychiatric disorders	Depression Anxiety Psychosis (if sleep-related hallucinations are present)
Neurologic disorders	Autism Benign childhood epilepsy Front lobe epilepsy Periodic limb movement disorder Transient global amnesia Absence seizures Complex partial seizures
Other medical disorders	Use of sedating medications Syncope Prader–Willi syndrome Niemann–Pick disease type C

REM rapid eye movement