Ambien- my experiences with it.
Ambien is a non-benzodiazepine that works similar to benzos. It is more specifically for the falling asleep type of issue as opposed to staying asleep. Restoril is indicated for both falling and staying asleep.
Within 15 minutes is usually when you will experience the effect of Ambien, so I do suggest you take it right before going to bed.

Now, something I experienced (in my experience specifically, not generalizing every other experience out there) which was quite bizarre; one the first night I used it I accidentally took the whole 10 mg pill instead of half. While lying in bed, I started hearing my father's voice around the room. It was something I heard of, but did not expect. In some cases, hallucinations may be experienced. Apparently I was pretty young when I first used it and an underdeveloped brain is more susceptible to this.

In general, I would say it worked well for me, and I would recommend it, though it really depends on what your specific needs are- if you have trouble staying asleep for the full night, you may need something else with a more extended effect such as Lunesta. (Eszopiclone)