Sleep Reactivity and Psychological Health in Normal Sleepers: the moderating role of stress
The aim of the present study was to determine whether normal sleepers with vulnerability to insomnia, via high sleep reactivity, demonstrate more sleep-related dysfunctional cognitions and behaviours and poorer psychological health compared to those who are not vulnerable. Further, the influence of stress on the relationship between sleep reactivity and psychological health was also examined. A cross-sectional survey of 737 young adult ‘normal’ sleepers from the general population was undertaken. Results indicated normal sleepers vulnerable to insomnia demonstrated more sleep-related dysfunctional cognitions and behaviours as well as poorer psychological health compared to those not vulnerable. Furthermore, the relationship between sleep reactivity and psychological health was moderated by perceived stress over the previous month and life events over the previous year. Therefore, identifying and supporting those who are vulnerable to insomnia may be a fruitful avenue for preventative public health campaign to mitigate both insomnia and poor psychological health.