I am on day 3 smoke free and day 9 on the chantix. After yesterday I believe if I could make it through one of the toughest days of my life and not smoke oh yeah I can do this! But I have also not been able to sleep at night. I am tired and I want to but just toss and turn. ultamately getting about 2-3 hours of sleep. I was wondering if anyone might know if it is because of the lack of nicotine or the chantix? If anyone could help it would be very great!