Validation of Capturing Sleep Diary Data via a Wrist-Worn Device

Area of Science:

• Sleep Science
• Digital Health Technology
• Clinical Research Methods

Background:

• Paper sleep diaries are the established standard for assessing sleep continuity in clinical practice and research.
• Limitations of paper diaries include potential for errors, loss, illegibility, and being outdated for tech-savvy generations.

Purpose of the Study:

• To evaluate the reliability and validity of a wrist-worn electronic sleep diary compared to traditional paper diaries.
• To assess the electronic diary's correlation with objective sleep continuity measures via actigraphy.

Main Methods:

• A prospective study design compared 14 days of sleep continuity data collected via paper diaries and a wrist-worn electronic device.
• The electronic device also captured actigraphy data for objective comparison.
• Thirty-five healthy adults (mean age 36, 80% Caucasian, 74% female) participated.

Main Results:

• Significant, moderate, positive correlations were found between electronic and paper diary methods for all sleep continuity variables.
• Electronic data capture showed a significant relationship with objective sleep continuity measures from actigraphy.
• Paper diary variables did not show significant association with objective actigraphy measures.

Conclusions:

• Wrist-worn electronic sleep diaries are a reliable and valid alternative to paper diaries.
• Electronic diaries offer comparable or superior accuracy to paper methods for capturing daily sleep data.
• This technology presents a modern solution for sleep assessment in clinical and research contexts.