About NoCoffeeAfter
NoCoffeeAfter is designed to help coffee lovers maintain healthy sleep habits without giving up their favorite brew. We believe that understanding your body's caffeine metabolism is the key to balancing productivity and rest.
Unlike generic rules like "no coffee after 2 PM", our calculator takes into account your individual caffeine sensitivity (half-life), bedtime, and exact type of beverage to provide a scientific cut-off time.
Our Mission
To protect your deep sleep by providing precise, science-backed caffeine timing recommendations.
The Science
Caffeine has a half-life of approximately 5 hours in healthy adults, but this varies widely (3-10 hours) based on genetics (CYP1A2 enzyme). Just 50mg of remaining caffeine at bedtime can significantly disrupt sleep architecture.