Zopiclone is a drug generally specified to treat wakefulness, which is a sleep complaint characterized by difficulty falling asleep or staying asleep. Zopiclone is a opiate- narcotic drug that helps people with wakefulness by promoting sleep and reducing the time it takes to fall asleep. Zopiclone works by enhancing the goods of a neurotransmitter called gamma- aminobutyric acid( GABA) in the brain. This results in a comforting and narcotic effect, which can help with sleep.