Hypersleep is a theoretical state of suspended animation that allows humans to endure long-duration space travel. In this state, the body's metabolic processes are significantly slowed down, reducing the need for food, water, and oxygen. This concept is often depicted in science fiction, where astronauts can sleep for years while traveling vast distances in space. The idea of hypersleep is closely related to concepts like cryonics and suspended animation. While real-life technology has not yet achieved true hypersleep, researchers are exploring methods to induce similar states for medical purposes and potential future space missions, such as those to Mars.