Trouble in Bed: The Role of Pre-Sleep Worry and Intrusions in the Maintenance of Insomnia
Insomnia chronically affects 1 in 9 individuals. It causes sufferers severe distress as well as social, interpersonal, and occupational impairment. One of the most replicated findings in the insomnia literature is that people who suffer from insomnia attribute their sleep disturbance to unwanted and excessive intrusive thoughts and worries whilst trying to get to sleep. This article aims to provide an overview of published studies relating to unwanted worry and intrusions in insomnia and to establish the extent to which unwanted worry and intrusions, and the management of them, contribute to the maintenance of insomnia. It is argued that a key mechanism underpinning excessive negatively toned cognitive activity is the strategy by which the unwanted thoughts are managed. Preliminary research is presented in support of this proposal and the clinical implications of it are discussed. It is concluded that investigations of the mechanisms underpinning excessive and unwanted pre-sleep intrusions and worry are in their infancy, but that it is a promising area for future research.