Does Ambien cause amnesia (memory loss)?
In some cases, Ambien and other sleep medicines can cause a special type of memory loss or “amnesia.” When this occurs, a person does not remember what has happened during the several hours between using Ambien and the time its effects wear off. In order to avoid memory problems, make sure to take Ambien only when you are able to get a full night’s sleep (7 to 8 hours) before you need to be active again.