Abstract
The higher prevalence of insomnia in women has been attributed to biological factors, which are less likely than cognitive and behavioral factors to play a role in perpetuating insomnia. Gender differences in perpetuating factors have not been extensively examined. This study compared men's and women's self-reports of factors that perpetuate insomnia; experience of symptoms, perceived severity and impact on daytime functioning; and use of strategies to manage insomnia. Data were collected at baseline, using reliable and valid measures, in a project that evaluated behavioral therapies for insomnia. The sample (N = 739) consisted of women (62.4%) and men (37.6%). Gender differences were found in: 1) perpetuating factors: men took more naps and held more unhelpful beliefs about insomnia, whereas women experienced higher pre-sleep arousal; 2) perception of insomnia severity: higher among women; 3) perceived impact of insomnia: higher fatigue among women; and 4) use of strategies (higher in women) to manage insomnia. Gender differences were of a small size but could be associated with women's stress, expression of somatic symptoms, and interest in maintaining their own health to meet multiple role demands.