I started on 18mg juice back in October 2014. I am now down to 12 mg and will slowly continue dropping the nic level. Haven't smoked a cig since October. Smoked a pack of full strength reds every 2 days for decades. As far as sleep, you might want to try a supplement called melatonin. Works well for me and it is natural. You should be able to find it in any drug store or supermarket.