Did you kno getting adequate sleep the first night after learning a new skill is important for improving memory and performance. Research suggests that sleep plays an important role in memory, both before and after learning a new task. Lack of adequate sleep affects mood, motivation, judgment, and our perception of events. People should get between 8-9 hrs of sleep each night.

This information came from http://healthysleep.med.harvard.edu/healthy/matters/benefits-of-sleep/learning-memory