I took the drug and completely stopped smoking within a week and in my third week of taking Champix started to feel really tired, waking up at 4am in the morning after having really vivid dreams and then not being able to fall back to sleep again. My eyes started to feel really scratchy, could have been the tiredness but felt like a drug related issue. I am now 9 days off Champix and still am not smoking (don't think I ever will again either) but I'm still experiencing sleep issues. Even the nights I've had a few drinks and would generally sleep for 8/9 hours I'm waking up after just a few hours and then not being able to fall back to sleep. Am I going mad or is this a normal side affect of the drug, and/or possible withdrawal from smoking? I feel so tired all the time its starting to make me feel depressed and down.