Wood, A. M., Joseph, S., Lloyd, J., &Atkins, S. (2009). Gratitude influences sleep through the mechanism of pre-sleep cognitions. Journal of psychosomatic research, 66(1), 43-48.
ObjectivesTo test whether individual differences in gratitude are related to sleep after controlling for neuroticism and other traits. To test whether pre-sleep cognitions are the mechanism underlying this relationship.MethodA cross-sectional questionnaire study was conducted with a large (186 males, 215 females) community sample (ages=18–68 years, mean=24.89, S.D.=9.02), including 161 people (40%) scoring above 5 on the Pittsburgh Sleep Quality Index, indicating clinically impaired sleep. Measures ...