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Sleep Hypn. 2018; 20(4): -

Sleeping Position, Subjective Sleep Quality and Expression of Anger

Félix Arbinaga, Inmaculada Tornero-Quiñones, Eduardo Fernández-Ozcorta.


Objective: To analyze the subjective quality of sleep and the expression of anger according to the position adopted during sleep.
Methods: Using an ex-post facto design and an incidental sampling procedure, 729 university students participated in the study, 63% of which were women. The subjective quality of sleep was assessed using the Pittsburgh Sleep Quality Index (PSQI) and anger was measured using the State-Trait Anger Expression Inventory-2 (STAXI-2). One question was used to determine the body position: "Normally, what position do you adopt when sleeping? [Right Lateral Decubitus (RLD), Left Lateral Decubitus (LLD), Supine Decubitus (SD), or Prone Decubitus (PD)].
Results: 42.4% reported sleeping in the RLD position, 29.2% in LLD, 10.6% in SD and 17.8% in PD. Women tended to sleep in RLD and not in SD, while in men there is a tendency to sleep in the SD position and not in RLD (χ2 (3,729) = 15.119, p

Key words: Key words: Anger, sleeping position, subjective quality of sleep, college students,

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