“…31 However, in this review inconsistent findings on the relationship of psychological factors to subjective sleep were found. For example, researchers 8,14,15,27,[30][31][32][33][34][35] reported that psychological factors (e.g., anxiety, depression, or stress) influenced the degree of subjective report differences between IBS and the con- In addition to alterations in REM sleep, there is some evidence that persons with IBS spend increased time in light sleep (Stages 1 and 2). 33 Given that arousal/awakenings occur more easily in light sleep, this alteration might explain the increased frequency of reported arousal/ awakenings in persons with IBS.…”