The Universal Need for Sleep

This chapter explores the essential role of sleep in energy restoration and memory consolidation across various species, including unique insights into how even fungi exhibit sleep-like behaviors. The discussion highlights the sleep patterns of different animals, such as dogs and jellyfish, while addressing the complexities of defining sleep due to diverse physiological responses. Ethical considerations surrounding animal studies and the complexities of brain activity during sleep further emphasize the multifaceted nature of sleep throughout the animal kingdom.