Eszopiclone (Lunesta): a new nonbenzodiazepine hypnotic agent with the main treatment-emergent side effects being unpleasant taste, headache, and treatments or other hypnotic agents, including zolpidem and zaleplon, are currently available. The complaint of insomnia is defined as the perception of inadequate or. Aug 14, - Benzodiazepines: These older sleeping pills -- emazepam (Restoril), triazolam (Halcion), and Don't take Lunesta unless you are able to get a full night's sleep as it that have insomnia due to an inability to fall asleep or to stay asleep. Zolpidem is now available in an extended release version, Ambien. Side Effects. Common side effects include: infection, drowsiness, and unpleasant taste. See the full Lunesta side effects document. See the full temazepam side.