was browsing wikipedia, and i stumbled upon this info:

"Due to its stimulation of the nicotonic receptors (mimicking the effects of acetylcholine) it has been reported as a useful tool for the induction of lucid dreams, where a nicotine patch is applied after 4-6 hours of normal sleep and the subject falls back to sleep (into a more REM intense sleep cycle). Non-lucid dreams may become vivid, more memorable and some report a higher frequency of disturbing dreams. However it should be stressed that a consistent use of nicotine will desensitise the nicotonic receptors and therefore addicts are actually far less likely to achieve lucid dreams.

credit: Wikipedia

anybody want to give this a go?