Sleep Tech10 min readDecember 20, 2026
Sleep Routine & Circadian Rhythm Trackers Without Expensive Wearables
Great sleep is driven by behavioral habits: sunlight exposure, meal cutoffs, and digital wind-down routines. Build habit-first sleep tools.
1. The Circadian Anchor Protocol
Calculate optimal bedtimes, caffeine cutoff windows, and blue light restriction timers based on wakeup time.
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