Measuring What Matters in Sleep: Development and Validation of the Sleep Health Dimensions Questionnaire.

OBJECTIVE

Sleep health is a multifaceted concept encompassing six core dimensions: satisfaction, alertness, timing, regularity, efficiency, and duration. Individual and age-related differences in sleep health are associated with both mental and physical health. Comprehensive measures are needed to evaluate these differences and tailor treatment and preventive approaches.

METHODS

The present study developed and validated the Sleep Health Dimensions Questionnaire (SHDQ), a multidimensional measure of sleep health inadults. 1273 college students filled out the SHDQ and measures of insomnia, depression, anxiety, emotion regulation, and health-related quality of life. We evaluated the reliability, validity and factor structure of the questionnaire.

RESULTS

The SHDQ demonstrated strong psychometric properties, including internal consistency (Cronbach's α = 0.80), item-to-total correlations (r > 0.30), and convergent and divergent validity. The SHDQ effectively discriminated clinically relevant insomnia cases. The SEM model showed a good fit, indicating that the dimensions of sleep health are effective indicators of a main latent variable (multi-dimensional sleep health).

CONCLUSIONS

The SHDQ comprehensively evaluates sleep health dimensions. As a research tool, it is useful for exploring the relationship between sleep health and mental and physical health across various adult populations.