recorded rest / the shape of an archive
One spiral holds the whole 2018–2022 sleep archive. Moving clockwise inward follows calendar dates, from the oldest date at the outside to the latest at the inside. Each small ring or slash keeps one calendar slot. The faint blue guide traces calendar order, including unrecorded dates; it is not a sleep trajectory. The selected date appears enlarged in the center; the latest recorded date is shown initially. Spiral spacing composes the archive and does not measure duration or a clinical cycle. The year-spirals setting retains the earlier five-year layout.
Yellow arc length encodes recorded asleep duration within each elapsed hour. Noon is at the top, and the ring runs clockwise to the next noon. Every arc is centered inside its hour sector: its position within that hour is illustrative, not a raw sleep start or end. The total yellow fraction equals recorded asleep hours divided by the window’s elapsed hours. A gray slash means no retained asleep observation. Unfilled sectors do not establish waking.
A blue square marks the alternate sleep source S2; other recorded rings use S1. The enlarged ring shows the selected date, or the latest recorded date initially. Daylight-saving windows have 23 or 25 elapsed hours and retain their actual length. The exact reader identifies repeated or skipped local clock hours.
Asleep categories only; in-bed and awake records are excluded. Exact duplicates are removed, overlapping intervals are unioned within each source, and one source is chosen by overall observed-date coverage. Sources are never added together. Source names and raw interval endpoints remain private.
Left/right moves one calendar date, including missing dates. Home/End selects the bounds; Enter opens the reader; Escape restores the archive. The table includes every date inside the observed span.
Full collection method · Nine forms