How much have you been taking? I had no real side effects with taking 4.5g so I was thinking since I've eaten loads today (again) I'd try and up the amount.
I need to start my trial again. I slacked over with it over Christmas because my appetite completely died and I didn't really want to try it on an empty stomach. I think I recall sleeping a bit better after my first day.
Have you tried sleeping with ear plugs in? Completely removes any problems with noises waking me up. Only problem is the cats clawing me at 4am.