“There is substantial evidence that during sleep your brain is processing information without your awareness and this ability may contribute to memory in a waking state ” said Kimberley Fenn, assistant Professor of Psychology at Michigan State University.
More than 250 people underwent a study conducted by the University researchers. It was suggested that “people derive vastly different effects from this ‘sleep memory’ ability, with some memories improving dramatically and others not at all.”
People learn while they sleep study suggests. MSU News Sep 27 2011 … not well understood according to a study by Michigan State University researchers …
However a good night’s sleep is a must as it could improve your daily performance such as improved decision-making and an increased ability to cope with stress.