Ambien is a hypnotic drug that works in the part of the brain that determines the sleep cycle and insomnia. Ambien is an effective first-line drug for managing insomnia, frequent midnight awakenings, and allied conditions. It reduces the sleep onset time to fifteen minutes, and as a result, you get undisturbed sleep, and now you can purchase ambien without a prescription. Practicing sleep hygiene and medication for effective sleep management and allied conditions is important. Always take it per your doctor's instructions and for the stipulated time. It is available as immediate-release and extended-release Ambien CR, which works gradually and helps you get eight hours of sleep.