Zopiclone (also known by the trade names Zimovane and Imovane) is a non-benzodiazepine hypnotic substance of the cyclopyrrolone class that is primarily used in the treatment of insomnia. Zopiclone is known to belong to a family of drugs colloquially known as “Z-drugs”. Other Z-drugs include zaleplon (Sonata) and zolpidem (Ambien and AmbienCR).