Trauma characteristics and sleep impairment among trauma-exposed children.

Trauma-related sleep difficulties are quite common and their functional and clinical importance are increasingly recognized. High rates of sleep problems have been documented among trauma-exposed adults, particularly those diagnosed with posttraumatic stress disorder (PTSD); however, research with trauma-exposed children is relatively limited. Research specifically with child samples is critical due to the numerous developmental and functional implications that may result from sleep impairment. Characteristics of the traumatic event may play a key role in understanding sleep difficulties, yet, these associations are not well understood among trauma-exposed children. The current study therefore investigated whether aspects of the traumatic event (i.e., type, nature, chronicity, age of onset, removal from home, and complex trauma) were related to higher levels of sleep disturbances among 276 treatment-seeking children ages 6-18 years (M = 10.88, SD = 3.39; 63.4% female; 62.7% Black). Sleep problems were common in this sample. Domestic and community violence exposure were associated with higher levels of select sleep difficulties, as were interpersonal trauma, chronic trauma, a trauma that began early in life, and complex trauma. Nonetheless, type of trauma and characteristics of the traumatic event were largely unrelated to sleep problems on either caregiver's or children's reports. Removal from the home was not linked with sleep impairment. Although findings signify the relevance of sleep disturbances among trauma-exposed children, trauma characteristics may have limited influence on sleep problems.