Lunesta (eszopiclone) is a sedative, also called a hypnotic. It affects chemicals in your brain that may be unbalanced in people with sleep problems (insomnia). Lunesta is used to treat insomnia. so Buy Lunesta 1 mg online, This medicine causes relaxation to help you fall asleep and stay asleep. Lunesta 1 mg may also be used for purposes not listed in this medication guide.