The TED ED talk at the link below was created by Dr. Shai Marcu, a pediatric neurologist and sleep specialist at Leumit Health Services in Tel Aviv. The 5:45 minute video begins with a student who has an exam and a piano recital the next day and is contemplating whether to drink coffee and stay up studying and practicing, or go to sleep. The benefits of sleep for consolidating and strengthening memory are depicted well.
http://ed.ted.com/lessons/the-benefits-of-a-good-night-s-sleep-shai-marcu