In previous articles, we’ve covered more “well-known” sleep disorders, such as sleep apnea and narcolepsy. Idiopathic hypersomnia is another sleep disorder that can impact a person’s life, both day and night. Hypersomnia is a condition in which a person needs a greater amount of sleep than average—idiopathic means the cause of the condition, or need for extra sleep, is not known, although recently a dysfunction of certain neurons and neurotransmitters has been explored to be at least a partial cause of the condition [1]. As many people are undiagnosed or receive a delayed diagnosis (after many years) it is not possible to determine a closely accurate incidence of idiopathic hypersomnia, but combined, the two different forms are thought to impact every 1 in 10,000 to 1