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The deep-dive companion to the S3 video. Five chapters, one real seven-night sleep log, and the honest gap between what the research actually measured and what you can track yourself.
Five chapters, no filler: The Weekly Read, Nights In Range, The Two-Schedule Week, The Anchor, The Upstream Leak. Plus the Scorecard section itself, built in as a real fill-in, not linked out: a genuine seven-night sleep log, the exact scoring bands, and the full research behind the number the video only had time to round down to a headline.