The ICSD-3 rethinks the concept of insomnia and addresses a range of comorbid psychiatric illnesses as well as the effects of psychiatric drugs on sleep, reports Psychiatric News.

Insomnia is insomnia is insomnia, according to the third edition of the International Classification of Sleep Disorders (ICSD-3), published in June by the American Academy of Sleep Medicine. The old distinction of chronic insomnia as either primary or, more often, secondary to psychiatric, substance abuse, or other medical disorders is gone.