[…] is characterized by persistent or relapsing fatigue that does not resolve with bed rest. [beatcfsandfms.org]

'Excessive daytime sleepiness', 'hypersomnia' in the sense of prolonged sleep need, 'tiredness' or 'fatigue' are frequent complaints in primary care, requiring a careful separation in view of a correct diagnostic. [ncbi.nlm.nih.gov]

Idiopathic hypersomnia: Investigations and follow-up. ( 27838089 ) Leu-Semenescu S...Dauvilliers Y 2017 12 Case Report of a Patient With Idiopathic Hypersomnia and a Family History of Malignant Hyperthermia Undergoing General Anesthesia: An Overview of [malacards.org]

Anatomic abnormalities include a triangular face, a high and narrow arched palate, a long uvula, a class II malocclusion of the mouth (hypoplastic mandible), and, at times, a retroposition of the mandible. [beatcfsandfms.org]

A genetic basis for idiopathic hypersomnia is suggested by several works. [beatcfsandfms.org]

However, a recent double-blind, placebo-controlled study suggests Modafinil might be efficacious in treating IH patients ( 5 ). Sleep regulation seems to be disturbed in patients suffering from IH ( 6, 7 ). [frontiersin.org]

The symptomatic hypersomnias are less well known to sleep physicians and often neglected by specialists, either internists or psychiatrists, although they may seriously impact the quality of life of patients Access to the complete content on Oxford Medicine [oxfordmedicine.com]

Despite some reports that suggest an increased frequency of human leukocyte antigen (HLA) Cw2 and HLA DR5 in idiopathic hypersomnia, [ 19 ] HLA typing is of no help in the positive diagnosis of idiopathic hypersomnia. [beatcfsandfms.org]