At a glance
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NCT03114072N/AActiveUpdate OverdueUpdated 18mo ago · Completion was 86mo agoNightly Light Exposure in Pregnancy: Blue-blocking Glasses as an Intervention to Ease Sleep Disturbances and to Improve Mood
In Brief
A clinical study evaluating Blue-blocking glasses and Light grey control glasses for Sleep Disturbance. Active but no longer recruiting, targeting 60 participants across 1 site.
Signals
Detailed Summary
Sleep disturbances are common in pregnancy, and the incidence increases during the third trimester. Light and specially the blue wavelengths of light, is affecting sleep and the circadian rhythm. The main aim of this randomized controlled study is to investigate the effect of Blue-blocking glasses (BB-glasses) used in the evening and night on sleep and mood in pregnant women in the third trimester. The outcome measures assess sleep variables, alertness, melatonin level, sleepiness (subjectively), mood and symptoms of anxiety and depression. In addition we want to measure the pregnancy related sleep problems, alcohol intake, physical activity and perceives stress in the study population, and the association with daily/nightly light exposure.
Study Details
Timeline
Interventions
Wear the BB-glasses from three hours before bedtime, and if needed to turn on the light, also during the night.
Wear the light grey glasses from three hours before bedtime, and if needed to turn on the light, also during the night.