Ambien is helpful in the short-term treatment of sleeping disorders in adults, and it is the trade name for a drug called Zolpidem. You can conveniently buy Ambien online. Ambien is recommended only after cognitive behavioural therapy for insomnia and behavioural changes. It comes under a class of drugs called sedative-hypnotic, and it affects the chemicals in your brain and produces a calming effect. It decreases the time to sleep by almost fifteen minutes and helps you stay asleep for at least 7 to 8 hours.