TYPES OF INSOMNIA*- A number of different classification systems have been proposed for insomnia. The most detailed classification system is the International Classification of Sleep Disorders, Second Edition...
The ICSD-2 classification system categorizes the following types of insomnia: Acute insomnia, also called adjustment insomnia, short-term insomnia, stress-related insomnia, or transient insomnia Inadequate sleep hygiene Psychophysiological insomnia, also called primary insomnia, chronic insomnia, learned insomnia, or conditioned insomnia Idiopathic insomnia, also called childhood onset insomnia or life-long insomnia Paradoxical insomnia, also called sleep state misperception, subjective insomnia, pseudoinsomnia, and sleep hypochondriasis Insomnia associated with a medical condition, psychiatric disorder, neurologic disease, sleep disorder, medication, or drug use Unspecified insomnia
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The types of insomnia are described in detail separately. The ICSD-2 classification system does not include the terminology, "secondary insomnia." This reflects the belief that insomnia is more often a distinct disorder that coexists with medical or psychiatric disorders, rather than as a consequence of these conditions.