Ambien, also known by its generic name zolpidem, is a prescription medication primarily used for treating insomnia in adults. It belongs to a class of drugs called sedative-hypnotics, working by affecting chemicals in the brain that may be unbalanced in people with sleep problems. Ambien is available in immediate-release and extended-release forms, with the latter designed to help individuals stay asleep throughout the night. It is generally recommended for short-term use due to its potential for dependence and side effects like drowsiness and dizziness. Always follow medical advice and dosage instructions carefully when using Ambien.