I am right now on my 7th day on taking my tollerance break from smoking everyday for 2 years and I too had sleeping problems. I went to bed it would take me a hour or longer to fall asleep where as before when I smoked I would fall asleep within mins. I would take a vitamin called Valerian Root which is a natural sleep pills and melatonin with it and they worked great.. I only used it a couple times cause I wanted my system to naturally get back into the habit during this break and I would avoid the sleeping pills just cause they can be worse then the cannabis when you stop using them.

I would exerise everyday, sweat ALOT so you get rid of the thc much faster and you sleep easier overall.