It can be hard to get a diagnosis of idiopathic hypersomnia (IH). It’s easy to confuse it with other sleep disorders, such as narcolepsy. But even with a proper diagnosis, there are challenges. People ...

Idiopathic hypersomnia (IH) is a rare sleep disorder that causes extreme tiredness during the day for no clear reason. The word “idiopathic” means there’s no known cause, and “hypersomnia” means ...

A little-known and poorly understood sleep disorder that occurs during the rapid eye movement, or REM, stage of sleep has been garnering attention for its role in foreshadowing neurodegenerative brain ...