Caffeine Timing Made Simple
Caffeine Timing Made Simple
How Long It Really Lasts, Why It Differs For You, and Where Your Cutoff Should Be
Caffeine lasts far longer than it feels like it does, and by a different amount for everyone. This works out where your own cutoff should be — and gives you a week-long way to prove it.
PDF, available instantly — read on any device or print it
Why you need this
- One question, answered properly
- Produces a personal number rather than a general rule
- The experiment takes a week and needs nothing you do not have
What's included
- What a half-life actually means, without the chemistry
- Why the same coffee affects two people completely differently
- Where caffeine hides — chocolate, tea, cola, painkillers, decaf
- A cutoff experiment that gives you a number you can defend
- A seven-day caffeine timing tracker
- Free. Delivered as a PDF to your Download Hub
Frequently asked questions
How is this different from The Sleep Nutrition Guide?
The Nutrition Guide covers the whole evening — caffeine, alcohol, food and fluid — and gives caffeine about a page. This one is only about caffeine, and goes considerably deeper: half-life, dose, sensitivity, hidden sources and a cutoff experiment.
Do I need the calculator as well?
No, but it is free and takes ten seconds. The guide explains why the number is what it is; the calculator just gives you the number.
Will I have to give up coffee?
No. Nothing here asks you to drink less. It is about when.
Educational Disclaimer: SleepOriginal provides general educational information and practical self-guided resources. It is not medical advice, diagnosis, or treatment. People with persistent or concerning sleep difficulties should speak with an appropriately qualified healthcare professional.
Your next step
Your Day Shapes Your Night
Caffeine, evening meals, hydration and alcohol — observing your own patterns without restrictive eating.
Understand Food, Drinks and Sleep $19.00Also useful alongside it: The Sleep Pattern Journal
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