Ambien is a brand name for the medication zolpidem, which is a sedative-hypnotic medication used to treat insomnia (difficulty falling asleep or staying asleep). Here are some key points about Ambien: Sleep Aid: Ambien is primarily prescribed to help people with insomnia by promoting sleep initiation. It belongs to a class of drugs known as non-benzodiazepine hypnotics. Mechanism of Action: Zolpidem works by affecting certain neurotransmitters in the brain, specifically enhancing the activity of gamma-aminobutyric acid (GABA), which has a calming effect.