Ambien (zolpidem) 10 mg is a sedative medication & also known as hypnotic. It helps you to falls asleep to relax for a long. Ambien is used to treat insomnia. The immediate-release tablet is used to help you fall asleep when you first go to bed. The extended-release form of Ambien is known as Ambien CR, which has 2 layers which will help you to falls asleep as quick as possible & also help you to stay asleep for a long time. Would advise you to consult with your Doctor to determine which form of Ambien is best suited to you.