The Caffeine Cutoff & Sleep Guide
Personalized Timing, Real Sleep Science
A personal decision guide to fixing your sleep without giving up caffeine — find your pattern, choose your plan, and run a 2-week experiment that actually sticks.
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About this guide
This isn't another caffeine science explainer — it's a step-by-step decision guide for anyone whose caffeine habit and sleep have stopped getting along. Structured in three parts: Find Your Pattern (tell apart tolerance, slow clearance, and heightened sensitivity), Choose Your Plan (tapering protocols that avoid withdrawal, and cutoff timing built around your actual sleep schedule, not the clock), and Run the Experiment (a structured 2-week test-and-adjust process). Dedicated chapters cover genetics and CYP1A2 (treated with real scientific uncertainty, not oversold), anxiety and the "tired but wired" cycle, shift-work timing, athletic performance tradeoffs, pregnancy-specific guidance, and combination/stacking risks like caffeine plus alcohol and hidden caffeine sources. Grounded throughout in NIH, FDA, AASM, USDA, and peer-reviewed research (Drake et al. 2013) — the same sourcing standard behind the source site's own calculator. Includes a printable worksheets appendix to track your own pattern and plan.
What's inside
- ✓Part 1 — Find Your Pattern: tolerance vs. clearance vs. sensitivity
- ✓Part 2 — Choose Your Plan: tapering protocols + cutoff timing built around your real sleep schedule
- ✓Part 3 — Run the Experiment: a structured 2-week test-and-adjust process
- ✓Special-case chapters: genetics & CYP1A2, anxiety/"tired but wired," shift work, athletic performance, pregnancy, combination/stacking risks
- ✓Appendix: printable tracking worksheets