Table of Contents Author Guidelines Submit a Manuscript
Sleep Disorders
Volume 2013, Article ID 735812, 8 pages
http://dx.doi.org/10.1155/2013/735812
Research Article

Trait Hostility, Perceived Stress, and Sleep Quality in a Sample of Normal Sleepers

1Psychology Department, Suffolk University, 41 Temple Street, Boston, MA 02114, USA
2Independent Practice, 25 West 86th Street No. 3, New York, NY 10024, USA

Received 19 December 2012; Revised 6 March 2013; Accepted 6 March 2013

Academic Editor: Giora Pillar

Copyright © 2013 Nicholas D. Taylor et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Objective. To date, no studies have directly examined the effects of cognitive trait hostility on prospectively assessed sleep quality. This is important as individuals with heightened trait hostility demonstrate similar patterns of reactivity to perceived stressors as is often reported by poor sleepers. The present study hypothesized that increased trait hostility is associated with poorer subjective sleep quality and that perceived stress mediates this relationship. Methods. A sample of 66 normal sleepers completed daily sleep and stress logs for two weeks. Trait hostility was measured retrospectively. Results. The cognitive dimension of trait hostility was significantly correlated with subjectively rated sleep quality indicators, and these relationships were significantly mediated by perceived daily stress. Individuals with higher levels of trait cognitive hostility reported increased levels of perceived stress which accounted for their poorer sleep ratings as measured by both retrospective and prospective measures. Conclusions. Overall, the findings indicate that high levels of cognitive hostility are a significant risk factor for disturbed sleep and suggest that this might be a fruitful target for clinical intervention.