Sleep and memory experts have long known that sleep offers benefits for learning, but not just any sleep. The sleep that helps your child perform better in the classroom is called REM sleep, deep sleep characterized by rapid eye movements. Throughout the night, we tend to alternate between memory-boosting REM sleep and non-REM sleep every 90 minutes or so. During REM sleep, your child’s brain can actively process the day’s events, strengthen memories and possibly gain new insights about learned activities. Read on for five ways you can help your child get enough memory-enhancing REM sleep.