Ambien Causing Sleeping Problems Among Australians?

Recent reports talked about Stilnox, more popularly known as Ambien in other parts of the world, causing weird sleeping behavior among Australians.  A total of 16 separate complaints of sleepwalking behavior have been reported to the Federal Health Commission, all concerning patients under the medication.

Reports include a woman who binge-ate in front of the refrigerator while sleepwalking, one who painted her front door while asleep and other similar unconscious activities.
The health department also received 104 reports of hallucinations and 62 complaints of amnesia related to the medication.

There have also been reports from other countries of similar cases.