It definitely does.
It's called Stilnox over here, and I have a few friends who used to take it as a recreational drug (but usually after taking uppers), but you fight against the sedative to increase the trip. I may have done it once or twice when I was younger, stupider, etc...
You hallucinate, get really horny (and may think you're with someone else) and it increases sexual response, kinda like having sex on acid.
Personally, I prefer weed. Not that I use anything anymore.
As for Tiger, it's interesting how hard and far the mighty can fall. It was only a couple of weeks ago there was 'Tiger-mania' and everyone was gushing about him.
I never paid much attention to him before, because to me watching Golf is very much like being sedated, but he has all of a sudden become interesting...
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