Debating whether to pull an all-nighter or get some sleep before a big exam? This article breaks down what really happens to your brain and memory during last-minute cramming versus resting up. It uncovers real research findings, explains how sleep affects test results, and offers down-to-earth tips for smarter studying. Practical examples help readers figure out a plan that actually works. Find out why sleep might be the game-changer you'd never expect.