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Published on: June 18, 2014
Linking stable and dynamic features of positive affect to sleep
Anthony D Ong1, Deinera Exner-Cortens, Catherine Riffin
1Cornell University, Ithaca, NY 14853-4401, USA. ado4@cornell.edu
Summary
High trait positive affect (PA) and its reactivity to daily events can negatively impact sleep quality. Specifically, strong emotional responses may worsen sleep, particularly for those with naturally high positive affect.
Area of Science:
- Psychology
- Sleep Science
- Health Psychology
Background:
- Poor sleep is a significant factor in adult illness and death.
- Understanding factors influencing sleep is crucial for public health.
Purpose of the Study:
- To investigate the relationship between trait positive affect (PA) and positive affect reactivity.
- To determine how these affect measures are associated with sleep outcomes.
Main Methods:
- Utilized data from 100 participants in the National Survey of Midlife in the United States.
- Employed multilevel analyses to examine associations between affect and sleep.
Main Results:
- Higher trait PA correlated with improved morning rest and overall sleep quality.
- PA reactivity was linked to reduced sleep efficiency.
- Interactions showed that high PA reactivity impaired sleep, especially in individuals with high trait PA.
Conclusions:
- Elevated trait PA combined with high PA reactivity may lead to diminished sleep quality.
- Emotional reactivity plays a role in sleep disturbances, particularly for emotionally expressive individuals.
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