Abstract: The invention provides sprayable aqueous compositions containing zolpidem or single stereoisomer, mixtures of stereoisomers, pharmaceutically acceptable salts or prodrugs thereof, a solubilizing agent, a water soluble polymer with bioadhesive property. When administered intranasally using a spray device, zolpidem is rapidly absorbed with prolonged intranasal residence time and improved bioavailability. The compositions can be applied for the treatment of insomnia-related disorders such as difficulties with sleep initiation or middle of the night awakenings.