How Does Sleep Affect Memory? | MindLAB Neuroscience

Sleep Spindles and Memory — Why Your Brain Forgets What It Learned Yesterday Sleep affects memory by running an active consolidation protocol — not by passively storing the day. During NREM Stage 2, the thalamus generates 12–15 Hz bursts called sleep spindles that couple with hippocampal sharp-wave ripples to transfer the day’s learning from temporary hippocampal storage into durable cortical schemas. ...

May 4, 2026 · 11 min · 2285 words · Dr. Sydney Ceruto