It is not recommended to use sleeping pills for long term as it can become addictive and habit forming. It should be taken as per the recommended dose. It is recommended to treat insomnia which is a serious sleep disorder making it difficult to fall asleep or inability to fall asleep.
There are many cheap zopiclone sleeping pills but before their use makes sure to consult the doctor. Not all the sleeping pills are effective, and it can interfere with existing disease or medications. Long term use of the pills can slow down the brain function as it binds to the brain receptors.
Do not mix alcohol with these medications as it can cause lethal effect. It tends to cause some side effects like dizziness, lack of concentration, memory issues, clumsiness, lethargy, blurry vision, nausea etc. Always buy sleeping pills that are safe to use and prescribed and approved by FDA to reduce adverse effect.