Zolpidem works by relaxing the neurotransmitter and is specifically prescribed for the treatment of the sleeping disorder. In other words, this medication is for Insomnia. Hence, it relaxes the central nervous system (CNS) so you don’t need to struggle anymore for healthy sleep. Insomnia is a condition where a person is not able to sleep or sleep excessively. This condition shallows the natural sleeping cycle. During this, an insomniac experiences irritation and anxiety all the time.