Idiopathic Hypersomnia
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Idiopathic Hypersomnia Overview

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What is the definition of Idiopathic Hypersomnia?
Idiopathic hypersomnia (IH) is a neurological sleep disorder that can affect many aspects of a person's life. Symptoms often begin between adolescence and young adulthood and develop over weeks to months. People with IH have a hard time staying awake and alert during the day (chronic excessive daytime sleepiness). They may fall asleep unintentionally or at inappropriate times, interfering with daily functioning. They may also have difficulty waking up from nighttime sleep or daytime naps. Sleeping longer at night does not appear to improve daytime sleepiness. The cause of IH is not known. Some people with IH have other family members with a sleep disorder such as IH or narcolepsy.
What are the alternative names for Idiopathic Hypersomnia?
  • Idiopathic hypersomnia
  • Idiopathic hypersomnolence
  • Primary hypersomnia
Who are the top Idiopathic Hypersomnia Local Doctors?
Lynn M. Trotti
Elite in Idiopathic Hypersomnia
Dr. Lynn M. Trotti
Sleep Medicine
Elite in Idiopathic Hypersomnia
Dr. Lynn M. Trotti
Sleep Medicine

Emory Sleep Center

12 Executive Park Drive Northeast, 
Atlanta, GA 
404-712-7533
Experience:
23+ years
Languages Spoken:
English
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Offers Telehealth

Lynn Trotti is a Sleep Medicine provider in Atlanta, Georgia. Dr. Trotti has been practicing medicine for over 23 years and is rated as an Elite provider by MediFind in the treatment of Idiopathic Hypersomnia. Her top areas of expertise are Idiopathic Hypersomnia, Drowsiness, Excessive Daytime Sleepiness, Restless Legs Syndrome, and Hormone Replacement Therapy (HRT).

Nancy Foldvary
Elite in Idiopathic Hypersomnia
Dr. Nancy Foldvary
Neurology
Elite in Idiopathic Hypersomnia
Dr. Nancy Foldvary
Neurology

Cleveland Clinic Main Campus

9500 Euclid Avenue, 
Cleveland, OH 
216-444-2200
Experience:
42+ years
Languages Spoken:
English
See accepted insurances
Offers Telehealth

Nancy Foldvary is a Neurologist in Cleveland, Ohio. Dr. Foldvary has been practicing medicine for over 42 years and is rated as an Elite provider by MediFind in the treatment of Idiopathic Hypersomnia. Her top areas of expertise are Narcolepsy, Obstructive Sleep Apnea, Drowsiness, and Idiopathic Hypersomnia.

 
 
 
 
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Michael J. Thorpy
Elite in Idiopathic Hypersomnia
Dr. Michael J. Thorpy
Neurology
Elite in Idiopathic Hypersomnia
Dr. Michael J. Thorpy
Neurology

Montefiore At 3411 Wayne Avenue

3411 Wayne Avenue, 
Bronx, NY 
718-920-4841
Languages Spoken:
English
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Offers Telehealth

Michael J. Thorpy, MD, is Director, Sleep-Wake Disorders Center at Montefiore and Professor of Neurology at our Albert Einstein College of Medicine. His clinical focus is on the clinical diagnosis, evaluation and treatment of all sleep disorders, including sleep apnea, narcolepsy, insomnia and restless legs syndrome, among others. Dr. Thorpy is rated as an Elite provider by MediFind in the treatment of Idiopathic Hypersomnia. His top areas of expertise are Narcolepsy, Excessive Daytime Sleepiness, Idiopathic Hypersomnia, and ADULT Syndrome.

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What are the latest Idiopathic Hypersomnia Clinical Trials?
A Phase 2, Randomized, Parallel-Group, Double-Blind, Dose-Range-Finding Study to Evaluate the Safety and Efficacy of ALKS 2680 in Subjects With Idiopathic Hypersomnia (Vibrance-3)
A Phase 2, Randomized, Parallel-Group, Double-Blind, Dose-Range-Finding Study to Evaluate the Safety and Efficacy of ALKS 2680 in Subjects With Idiopathic Hypersomnia (Vibrance-3)
Enrollment Status: Recruiting
Publish Date: February 12, 2026
Intervention Type: Drug
Study Phase: Phase 2

Summary: The purpose of this study is to measure the safety and decrease in daytime sleepiness in subjects with Idiopathic Hypersomnia when taking ALKS 2680 tablets compared with placebo tablets

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A Dose-Finding, Adaptive, Randomized, Double-Blinded, Placebo-Controlled Trial to Evaluate the Safety, Tolerability, and Efficacy of TAK-360 in Participants With Idiopathic Hypersomnia (IH)
A Dose-Finding, Adaptive, Randomized, Double-Blinded, Placebo-Controlled Trial to Evaluate the Safety, Tolerability, and Efficacy of TAK-360 in Participants With Idiopathic Hypersomnia (IH)
Enrollment Status: Recruiting
Publish Date: February 09, 2026
Intervention Type: Other, Drug
Study Phase: Phase 2

Summary: Idiopathic Hypersomnia (IH) is a condition where people feel extremely sleepy during the day, especially in the morning, even if they sleep a lot at night. They may have trouble waking up in the morning, no matter how much they sleep (sometimes more than 11 hours per day), and they can't help feeling tired, even after taking daytime naps. Because of this sleepiness, they may have trouble focusing,...

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Published Date: May 12, 2022
Published By: Genetic and Rare Diseases Informnation Center