Extrinsic Sleep Disorders are the antonyms of Intrinsic Sleep Disorders. Unlike intrinsic sleep disorders, extrinsic sleep disorders are caused by external factors such as noise, light, caffeine, alcohol, or medication. A person suffering from an extrinsic sleep disorder may experience difficulty falling or staying asleep due to external stimuli. Sleep apnea, restless leg syndrome, and narcolepsy are some of the common examples of intrinsic sleep disorders, while insomnia, jet lag, and shift work disorder are the examples of extrinsic sleep disorders. It is important to identify the underlying cause of a sleep disorder to choose the most effective treatment approach. Lifestyle modifications, medication, and therapy are some of the ways to manage extrinsic sleep disorders.