Dreams14 min

Sleep replay and the overnight rewrite

Sharp-wave ripples and systems consolidation: how the sleeping brain reorganizes the day’s traces into durable structure.

Sleep & memory field · Nature Reviews / Sleep research

Replay literature is dream-adjacent but mechanistically sharper: sequences re-run offline, sometimes sped up, sometimes reversed.

For SI readers: biological precedent for offline training loops that change the agent without new sensory input.

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Read the original: Nature Reviews / Sleep research — Sleep replay and the overnight rewrite

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