Ambien inhibits the brain's natural activity, increasing drowsiness to intense sedation and rest.
Stay awake on Ambien is a sedative, also called a hypnotic. Ambien affects chemicals in the brain that may be out of balance in people with sleep disorders (insomnia). Rapid-release tablets are used at bedtime to help you fall asleep. Sustained release Ambien CR has a first layer that quickly dissolves into sleep and a second layer that slowly dissolves into sleep.
