Does zopiclone work for insomnia?

Depends: Insomnia, a disturbance in getting to, staying asleep, or non-refreshing sleep is a complicated disorder that may be secondary to poor sleep hygiene, medications, underlying medical or psychiatric disorder. It can also be its own entity. Medications can help for some with insomnia but are usually recommended for short term problems. If the insomnia does not resolve, make sure you see a specialist.

Yes: Zopiclone is a non-benzodiazepines sleep aid, it is not available in the United States, it's cousin "lunesta" is available in the usa. Chronic use of these medications can be associated with habit formation , tolerance and possible dependence. They are effective medications , however , they have to be used carefully and only under medical supervision.