Been using externnal cues (audio/visual) with little luck so I did some research on the net on REM sleep because I suspected there may be deeper REM and lighter REM. Sure enough I found there are Tonic which seems to be lighter REM and Phasic a deeper REM. But the info on it is scarce and usually very technical and there are a few experiments on it reguarding external stimuli during these states. It seems that during Phasic REM the dream is vivid but the senses of hearing and visual to the external environment is impaired but during Tonic REM they are more sensitive and more likely to wake the person up. I still don't know when they occour and what Phasic and Tonic REM really are...so if anyone has read up on these please tell me more..... Thanks..

IMJ