Insomniacs' perceived lack of control over sleep

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Abstract
It is widely assumed that insomniacs have poor self-efficacy for sleep and it is known that successful treatment is usually accompanied by improved self-efficacy. However, there has been little detailed investigation of insomniacs perceived lack of control over sleep. Insomniacs' perceived control over sleep itself is affected more than their perceived control over pre-sleep mental activity or physical tension. It was hypothesised that insomniacs would diverge from controls more in their sense that sleep was out of their control than that sleep was under their control, though this was not supported by the data. Also, there was no clear support for the idea that insomniacs' dissatisfaction with their control over sleep was the product of excessive aspirations for control. One factor that seems likely to contribute to insomniacs' lack of perceived control over sleep is that they do not have as lawful a pattern of expectations of sleep, based on their recent pattern of sleep, as normal sleepers do. Insomniacs, like non-insomniacs, were most likely to attribute poor sleep to external stresses and an over-active mind. Insomniacs showed a wide range of heightened emotional reactions to poor sleep. The implications of the results for self-regulation approaches to the treatment of insomnia are discussed.