NCT07001514

Evening Screen Content and Sleep Architecture in Older Adults: Crossover RCT

The Effect of Evening Technology Use With Calming vs. Exciting Content on Sleep Architecture in Older Adults: A Crossover Randomized Controlled Trial

• Status: Not Yet Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 50 (estimated)
• Sponsor: Blekinge Institute of Technology · Academic / Other
• Sex: All
• Age: 60 Years – 75 Years
• Healthy volunteers: Accepted

Summary

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?

Detailed description

This study will compare the effects of watching calming (nature documentaries), playing exciting digital games like Ruzzle, and reading a physical book on older adults' subjective and objective sleep quality. This will be a randomized crossover trial. The investigators will exclude participants with diagnosed sleep disorders, Severe cognitive impairment, Use of sleep-affecting medications such as melatonin or benzodiazepines, or Irregular sleep schedules. A sample size of approximately 50 participants (49-51) will be recruited. All the participants will have all three intervention periods with washout periods in between. During every intervention week, participants will fill out a quick nightly log about their sleep and what tech they used (smartphone, tablet, or a laptop/computer). During sleep, they will wear a comfy EEG headband measuring their sleep stages. Because everyone eventually does all three conditions, the investigators can compare each person's own results and get more precise answers with fewer people. The investigators will analyze the data and perform a statistical analysis. The study will be reported in the manuscript and published in a reputable journal.

Conditions

• Sleep

Interventions

Type	Name	Description
BEHAVIORAL	Calming digital content	Participants watch a curated selection of soothing documentaries narrated by Sir David Attenborough for 30-60 minutes each evening during one hour before bedtime.
BEHAVIORAL	Exciting Digital Content	Participants engage with the interactive word-based game Ruzzle for 30-60 minutes each evening during one hour before bedtime, designed to provide mental stimulation.
BEHAVIORAL	Non-digital book reading	Participants read a non-fiction book of their choice for the same duration, avoiding all digital screens during one hour before bedtime before bedtime.

Timeline

• Start date: 2025-08-01
• Primary completion: 2026-05-01
• Completion: 2026-12-01
• First posted: 2025-06-03
• Last updated: 2025-06-03

Locations

1 site across 1 country: Sweden