Title The Effect of Evening Technology Use with Calming vs. Exciting Content on Sleep Architecture in Older Adults: A Crossover Randomized Controlled Trial Background The study explores how evening use of digital devices with different types of content (calming vs. exciting) affects sleep in older adults. While technology's effects on sleep have been studied in younger populations, its specific impacts on older adults remain under-researched. This study fills that gap by focusing on subjective and objective sleep measures. Objectives and Research Questions Objective: Compare the effects of calming digital content, exciting digital content, and non-digital activities on sleep architecture. Key Questions: How does content type impact sleep architecture and quality? Does calming content lead to better sleep outcomes than exciting content? Are there subjective differences in sleep quality across conditions?
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Sleep architecture REM
Timeframe: Nightly during each participant's 7-day intervention periods - Week 1 (Days 1-7), Week 3 (Days 15-21), and Week 5 (Days 29-35) after that participant's enrollment; up to 5 weeks per participant.
Sleep architecture Deep Sleep
Timeframe: Nightly during each participant's 7-day intervention periods - Week 1 (Days 1-7), Week 3 (Days 15-21), and Week 5 (Days 29-35) after that participant's enrollment; up to 5 weeks per participant.
Sleep architecture, light sleep
Timeframe: Nightly during each participant's 7-day intervention periods - Week 1 (Days 1-7), Week 3 (Days 15-21), and Week 5 (Days 29-35) after that participant's enrollment; up to 5 weeks per participant.
Sleep latency (time to fall asleep)
Timeframe: Nightly during each participant's 7-day intervention periods - Week 1 (Days 1-7), Week 3 (Days 15-21), and Week 5 (Days 29-35) after that participant's enrollment; up to 5 weeks per participant.
Total sleep time (TST)
Timeframe: Nightly during each participant's 7-day intervention periods - Week 1 (Days 1-7), Week 3 (Days 15-21), and Week 5 (Days 29-35) after that participant's enrollment; up to 5 weeks per participant.
Sleep efficiency (SE)
Timeframe: Nightly during each participant's 7-day intervention periods - Week 1 (Days 1-7), Week 3 (Days 15-21), and Week 5 (Days 29-35) after that participant's enrollment; up to 5 weeks per participant.
Wake up after sleep onset (WASO).
Timeframe: Nightly during each participant's 7-day intervention periods - Week 1 (Days 1-7), Week 3 (Days 15-21), and Week 5 (Days 29-35) after that participant's enrollment; up to 5 weeks per participant.