"Study Uncovers Memory Aid: A Scent During Sleep" - weird and awesome.... From the New York Times...
Scientists studying how sleep affects memory have found that the whiff of a familiar scent can help a slumbering brain better remember things that it learned the evening before. The smell of roses — delivered to people’s nostrils as they studied and, later, as they slept — improved their performance on a memory test by about 13 percent.
www.nytimes.com/2007/03/09...9sleep.html