Clinical Research Directory
Browse clinical research sites, groups, and studies.
Blocking Blue Light in Pregnancy, Effects on Melatonin Profile and Sleep
Sponsor: University of Bergen
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.
Official title: Nightly Light Exposure in Pregnancy: Blue-blocking Glasses as an Intervention to Ease Sleep Disturbances and to Improve Mood
Key Details
Gender
FEMALE
Age Range
Any - Any
Study Type
INTERVENTIONAL
Enrollment
60
Start Date
2017-06-06
Completion Date
2026-07
Last Updated
2024-12-18
Healthy Volunteers
No
Conditions
Interventions
Blue-blocking glasses
Wear the BB-glasses from three hours before bedtime, and if needed to turn on the light, also during the night.
Light grey control glasses
Wear the light grey glasses from three hours before bedtime, and if needed to turn on the light, also during the night.
Locations (1)
Randi Liset
Bergen, Norway