Clen doesn't get me as wired, and I tend to sleep better at night vs being up all night on an ECA, and perpetually running off 4 hours sleep 4-5x a week. I haven't been on Clen very long though, only 2 days so Ill let you know my final results. I also find that Clen seems to make me feel more dissociated, but that might be due to taking large amounts of Taurine to help counteract Liver damage from Clen.