Difficulty sleeping | Insomnia | Insomnia (non-organic) | Insomnia exacerbated | Insomnia NEC | Insomnia NOS | Insomnia related to another mental condition | Other insomnia | Persistent disorder of initiating or maintaining sleep | Primary insomnia | Sleep decreased | Sleep difficult | Sleep loss | Sleeplessness | Transient disorder of initiating or maintaining sleep | Chronic insomnia | Dysphylaxia | Transient insomnia | Agrypnia | Insomnia disorder | Short term insomnia | Secondary insomnia | Sleep Initiation and Maintenance Disorders | Disorders of Initiating and Maintaining Sleep | DIMS (Disorders of Initiating and Maintaining Sleep) | Early Awakening | Awakening, Early | Nonorganic Insomnia | Insomnia, Nonorganic | Primary Insomnia | Insomnia, Primary | Transient Insomnia | Insomnia, Transient | Rebound Insomnia | Insomnia, Rebound | Secondary Insomnia | Insomnia, Secondary | Sleep Initiation Dysfunction | Dysfunction, Sleep Initiation | Dysfunctions, Sleep Initiation | Sleep Initiation Dysfunctions | Insomnia Disorder | Insomnia Disorders | Insomnias | Chronic Insomnia | Insomnia, Chronic | Psychophysiological Insomnia | Insomnia, Psychophysiological |