REM sleep encodes memory (Score 1)

REM sleep have been shown to be responsible to encode short-term memory into long-term memory. People who dream, perform better on tasks they have learn the day before. Students scores better if they sleep or take a short nap after a long night of studying. So it does make sense learning during REM sleep can help learning.
Here is an interestine article about dreams

http://www.newscientist.com/news/news.jsp?id=ns9 99 970