A new study has found that a short nap can actually improve memory function five-fold according to the study published in Neuropsychology.Daily Express reported that a nap sleep during the day of between 45 minutes and an hour consolidates memories and can be a powerful aide to students revising for exams or anyone needing to remember things.Researchers at Saarland University in Germany said the brief nap didn’t so much increase memory but allowed people to retain what they had just learned.Professor Axel Mecklinger, who supervised the study, said the study proved it was important for students to be well rested during exam perioDaily Express reported that a nap sleep during the day of between 45 minutes and an hour consolidates memories and can be a powerful aide to students revising for exams or anyone needing to remember things.ds.A short nap at the office or in school is enough to significantly improve learning progress.