Green Light Effect on Sleep

Status unconfirmed · Not applicable

Conditions studied: Sleep

In brief

The main goal of this study is to determine whether exposure to a narrow band of green light (NBGL) improved sleep quality in healthy subjects. This is a within-subject study design that examines NBGL effects on sleep onset, sleep fractures (i.e., how many times per night the subjects wake up), total sleep duration, and sleep quality using high-resolution assessments. To complete the study, each participant will complete a 30-day, daily sleep diary while using white light (i.e., being in regular room light) during the last 2 hours of their waking period. This period will be defined as the baseline/control arm of the study. After completing this phase 1, subjects will receive a lamp designed to emit the narrow band of green light and again be asked to complete a 30-day, daily sleep diary, but this timer while using the NBGL light (i.e., being in what appears green light) during the last 2 hours of their waking period. This period will be defined as the active arm of the study. After completing this phase 2,

Key facts

Study ID

NCT04828473

Run by

The Green Light Study Center

People needed

25

Starts

2020-10-01

Expected to finish

2022-10-01

Last updated by the study team

2022-03-15

Who can join

Age: 40 and older, up to 95. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Healthy volunteers who wish to improve their sleep quality

You may not qualify if…

• Subjects diagnosed with sleep disorders and are currently on medications and/or devices that aid their sleep ( eg trazadone as medication, CPAP)

Where it is running

• Green Light Sleep Study Center — Boca Raton, Florida, United States (enrolling)

Full record on ClinicalTrials.gov

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