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Sleep Disorders Glossary F - K

As you learn about sleep disorders, you'll probably encounter words that you've never heard of before. This glossary can serve as a resource to explain many of these words. Expanding your sleep vocabulary will help you to ask better questions of your doctor and research the topics on your own.

Definition of Hypersomnia

Learn the definition of hypersomnia.

Definition of Hippocampus

Learn the definition of hippocampus.

Definition of Hypothalamus

Learn the definition of hypothalamus.

Definition of Free Running

Learn the definition of free running.

Definition of Homeostatic Sleep Drive

Learn the definition of homeostatic sleep drive.

Hypnagogic Hallucination

Learn the definition of hypnagogic hallucinations.

Definition of Hypnagogic Jerk

Learn the definition of hypnagogic jerk.

Definition of Hypnic Jerk

Learn the definition of hypnic jerk.

Definition of Hypnopompic Hallucination

Learn the definition of hypnopompic hallucination.

Definition of Hypopnea

Learn the definition of hypopnea.

Insomnia

What is insomnia?

Definition of Jet Lag

Learn the definition of jet lag.
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