Ambien is a sedative; it is the brand name for Zolpidem. It affects the brain chemicals that may be unbalanced in people with insomnia. You can conveniently Buy Ambien Online from our website if you are suffering from sleeping disorders. The immediate release formula that helps you fall asleep as soon as you go to bed. The extended-release form of Ambien has a first layer that dissolves quickly to help you fall asleep and a second layer that dissolves slowly to help you stay asleep. It is determined by the doctor which form of Ambien is best for the patient.