insomnia
"My experience with Lunesta was a bit difficult.  The brand name (which I never believed was any different than generic) worked WONDERS for me for years!  But after insurance, was $50 per month.  You get this lovely (awful) metallic taste in your mouth right before it kicks in, and it stays - so trick is to brush your teeth AND tongue, drink OJ, it'll pass.  Then the generic came out (YAY CHEAPER), and ALL I got was the metallic taste.  No sleep.  If you need sleep and have the $, go brand name and enjoy your slumber!  2mg was the perfect dose for me as 3mg made me a bit drowsy."