Health - Can Cigarettes / Nicotine cause sleep disturbances?

[~lostgurl~]

SWIM is having a lot of difficulty sleeping at the moment see thread for more deatils: http://www.drugs-forum.com/forum/sho...560#post215560

And SWIM is wondering if her nicotine habit is causing her sleep wakings. She generally smokes 20-25 light cigarettes per day but that could easily have doubled over the past 6 weeks. So there are two questions SWIM has here, 1. could the large amount of nicotine in SWIM's system be casuing sleep wakings?... or 2. Could she be having withdrawal symtoms during the night from smoking so much during the day?

If it is withdrawal, apart from cutting down on cigarettes SWIM could maybe wear the patch at night for sleep, but if it is due to an overload of nicotine in her system this would more than likely make things much worse. Though at the moment she has no idea if cigarettes are even the cause of her night time Akathesia..... Any advice or experiences with this are welcome!!!