Dreams reflect nocturnal cognitive processes: Early-night dreams are more continuous with waking life, and late-night dreams are more emotional and hyperassociative

Contributions of specific sleep stages to cognitive processes are increasingly understood. Non-REM is particularly implicated in episodic memory consolidation, whilst REM preferentially consolidates and regulates emotional information, gives rise creativity insight. Dream content reflects these processes: non-REM dreams more likely picture memories, whereas bizarre. However, across-the-night differences the sources dream content, as opposed stage differences, less well In present study, 68 participants were awoken from early late night recorded their waking-life activities. Early-night clearly relatable (or continuous with) waking life than late-night dreams. Late-night emotional-important, time orientation varied, hyperassociative, early-night These may underlie mental that accompanies like emotion-processing, creativity.