Randomized clinical trial finds 1 mg melatonin before bed time in a noisy and lighted sleeping environment increased total sleep time and REM sleep time and decreased latency to falling asleep. It was more effective than placebo and the use of earplugs User TheReviewNinja, 17 Dec 2019
Study finds melatonin improves sleep quality and serum melatonin levels better in healthy subjects exposed to simulated noise and light compared to placebo and the use of earplugs User tealness28, in the Welcome to the Night Shift: We don't do 9 to 5 subreddit, 20 Mar 2015
Randomized clinical trial finds 1 mg melatonin before bed time in a noisy and lighted sleeping environment increased total sleep time and REM sleep time and decreased latency to falling asleep. It was more effective than placebo and the use of earplugs & eye masks. User worldnewsbot, in the News From Around The World subreddit, 20 Mar 2015
Randomized clinical trial finds 1 mg melatonin before bed time in a noisy and lighted sleeping environment increased total sleep time and REM sleep time and decreased latency to falling asleep. It was more effective than placebo and the use of earplugs User marc5387, in the Psychology subreddit, 19 Mar 2015