Lately, I haven't really needed sleep aids unless it's Friday night/very early Saturday morning. I usually close the store Friday night/Saturday morning, and I get home at 2am and have to wake up at 10am, so I'd rather not risk laying in bed for 5 hours just to accidentally fall asleep 5 minutes before 10.
I think the fact that my computer is now built helps tremendously. I've been playing a lot of Arma 2, Mass Effect, and Portal 2. I don't even have homicidal urges anymore. I guess killing so many people in Arma 2 is helping a lot.