Find Your
Optimal Window

Sleep quality is the hidden variable in caffeine timing — it determines your adenosine baseline and how aggressively the afternoon dip will hit

Your current energy state determines when the afternoon dip will hit and how hard — be honest, the protocol adjusts for it

Include espresso, cold brew, energy drinks — anything with caffeine. This determines your current cortisol load

Select everything that applies — your optimal window updates in real time