REM Dreams and Non-REM dreams are very different from each other in a few major ways. The first difference between the two is Non-REM dreams consist of brief, fragmentary impressions. They are also less likely to involve visual images compared to REM sleep, and are more frequently forgotten. Non-REM dreams are like thinking about something during the day for a brief period of time while REM dreams are comparable to thinking deeply about something. REM sleep consists of about two hours a night while Non-REM sleep lasts about four to six hours.[/b]
well know wonder everyone thinks u only dream in rem. cause non rem dreams must suck. No visual images, fragmented and frequently forgotten. horrible.