Rapid Eye Movement (REM) sleep, a phase of the sleep cycle characterized by vivid dreaming and rapid eye movements, has been found to play a crucial role in processing negative thoughts and memories. During REM sleep, the brain engages in various complex activities, including memory consolidation and emotional regulation. Research suggests that REM sleep facilitates the integration of emotional experiences, helping individuals better cope with negative emotions and memories. It is believed that this phase of sleep promotes the reorganization of neural connections, aiding in the adaptation and understanding of emotionally charged events. The emotional content of memories may be softened or contextualized during REM sleep, contributing to a more balanced emotional state when individuals wake up. This intricate process highlights the importance of quality sleep, particularly REM sleep, in promoting emotional well-being and mental resilience.