An over-the-counter drug called Zopiclone Blue is used to treat sleep issues in the USA. Its main job is to regulate the circadian rhythm and make the brain go to sleep. Consequently, it is effective in treating both jet lag and 24-hour sleep-wake disorder. It is available in various dosages. The exact strength that is advised varies based on how serious the sleeping problem is. It functions similarly to the body's sleep-promoting hormones. The hormone is light-sensitive. Likewise, the drug facilitates the restoration of the circadian rhythm or sleep-wake cycle. This is how the medication helps treat insomnia.