Ok, one of the main reasons I stopped taking ephedrine based supplements was because of the poor sleeps I was having. I was on Xenadrine last year, which actually worked quite well, but due to the poor sleeps I was having, I discontinued use of that supplement. Yesterday, I took my first dose of Hydroxycut and last night I had probably one of the worst sleeps of my life. I was awake on the hour, every hour. It was just brutal. Has anyone else had this problem? Does Hydroxycut contain anything that may lead to problems with sleep? I'm sure some of you have takin this stuff... have you had any problems with sleep because of it?