1731 CHRONIC INSOMNIA, ASSOCIATED WITH IMPAIRMENT IN DAYTIME FUNCTIONING OR QUALITY OF LIFE, HAS A PREVALENCE OF 10-15%.1 RELATIVELY FEW epidemiologic studies are available which provide data on the proportion of patients with specific clinical subtypes of insomnia such as difficulty with sleep onset, difficulty maintaining sleep, or more than one insomnia complaint. Ohayon and Roth, in a large...

THE TRANSITION FROM WAKEFULNESS TO SLEEP IS MARKED BY A PROGRESSIVE LOSS OF CONSCIOUSNESS, REDUCTION OF STIMULUS RECEPTION, CESSATION OF BEHAVIORAL RESPONSE, AND AN ABSENCE OF MEMORY.1 Accordingly, for the sleeper, the exact point of sleep onset is elusive. One interesting finding to emerge from research on human sleep is that many people with insomnia overestimate their sleep-onset latency (SO...

BACKGROUND Insomnia is an important symptom in alcohol-dependent patients because it may persist despite abstinence and predispose to relapse to drinking. The goal of the present study was to evaluate the prevalence and clinical correlates of insomnia in a sample of 302 alcohol-dependent patients admitted to treatment programs in Poland. METHODS Participants were mostly men (73.8%) with a mea...

BACKGROUND Past research on the association between insomnia and suicidal ideation (SI) has produced mixed findings. The current study explored the relationship between insomnia, SI, and past-year mental health status among a large Canadian Forces (CF) sample. METHOD Data was obtained from the 2013 Canadian Forces Mental Health Survey (CFMHS), and included a large representative sample of Can...

Hyperarousal is a 24-h state of elevated cognitive and physiological activation, and is a core feature of insomnia. The extent to which sleep quality is affected by stressful events-so-called sleep reactivity-is a vulnerability factor for developing insomnia. Given the increasing prevalence of insomnia with age, we aimed to investigate how hyperarousal and sleep reactivity were related to insom...

BACKGROUND Little has been known regarding the correlates of severe insomnia in major depressive disorder (MDD). This post-hoc analysis aimed to examine the sociodemographic and clinical correlates of severe insomnia in psychotropic drug-free, Asian adult outpatients with MDD. METHODS Participants were psychotropic drug-free patients with MDD, aged 18-65 years. By using the Symptom Checklist-...

BACKGROUND Despite undeniable evidence for the efficacy and effectiveness of Cognitive Behaviour Therapy for Insomnia (CBT-I), the potential for its widespread dissemination and implementation has yet to be realised. A suggested reason for this is that traditional CBT-I is considered too burdensome for deployment, in its current form, within the context of where it would be most beneficial-Prim...

Older adults have high prevalence rates of insomnia symptoms, yet it is unclear if these insomnia symptoms are associated with objective impairments in sleep. We hypothesized that insomnia complaints in older adults would be associated with objective differences in sleep compared with those without insomnia complaints. To test this hypothesis, we conducted a cross-sectional study in which older...

Many questions remain unanswered with regard to our understanding of insomnia. Although it is generally believed that 10% to 15% of the adult population suffers from chronic insomnia, and an additional 25% to 35% have transient or occasional insomnia, prevalence estimates vary because of inconsistent definitions and diagnostic criteria. The elderly in particular are affected by insomnia, and it...