What most people miss
Sleep is not a power-off. Slow oscillations coordinate regions; hippocampal replay re-runs fragments of the day; synapses are tagged to stay or fade. Continuity overnight is electrical housekeeping.
What you practiced awake is often finished asleep — probability rewritten while you are offline to the world.
Why it matters
Skip the rhythm and learning frays, mood slips, and the network keeps noise it should have pruned. Rest is not optional polish; it is part of the signal path.
Human Life angle
After Gate, Spike, Synapse, and Meme, Rhythm is the quiet craft: protect the hours when charge consolidates care into continuity.