In psychology class we studied various effects on learning (eg: environment, state of mind, etc). One thing that I remember learning was that sleep caused the

In psychology class we studied various effects on learning (eg: environment, state of mind, etc). One thing that I remember learning was that sleep caused the brain to retain information better, so they recommended napping after studying and other similar things. If you're in a job where you're learning new things often, a nap could also help you learn more quickly and retain the lessons long-term.