Fear of sleep was related to sleep disturbances specific to trauma rather than “classic” insomnia symptoms. Unexpectedly, greater fear of sleep was associated with reduced WASO. These results may be related to having a truncated sleep period and thus more consolidated sleep. Fear of sleep deceased following CBT-I, suggesting to be related to a decrease in PTSD symptomatology. CBT-I improves insomnia symptoms in individuals with PTSD and may improve PTSD symptoms.
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