There have been many questions on whether or not episodic memory declines are paralleled by SWS declines as age increases. In the article, "Sleep, Memory, and Aging: The Link Between Slow-Wave Sleep and Episodic Memory Changes From Younger to Older Adults," Michael K. Scullin studies SWS-dependent episodic memory consolidation in younger and older adults. A lot of studies have been conducted on this before. For example, one study was done on older rats, who were used for the Morris Water Maze. The results of the study came out similar as humans. This meant that there was no correlation with memory and deep sleep or there was correlation where deep sleep is associated with worse memory. It also meant that the relationship between sleep and memory
