In order to learn, we need to sleep

Learning is hard and takes effort on a personal level. It requires attention and physical energy.

• When you start learning, you need to pay careful attention to bring that information into your short-term memory. Lack of sleep can make it difficult to pay attention to. Even memory champions can only hold 5-7 pieces of information at a time.
• When you sleep, short-term memories are moved to a different region in the brain for long-term storage. Your brain then consolidates the information and select what information to forget.