Built a caffeine tracker that predicts if you'll sleep well tonight

Last year, I was on a roll drinking coffee multiple times a day to keep myself energized. I loved the feel of it. Then I realized my sleep was getting disruptive. As a product builder, I started A/B testing my habits to figure out what was wrong - turned out I needed to track my caffeine so I'd know when to stop and how it would impact my sleep.

But here's the problem: I couldn't find an app that didn't ask for money, didn't bombard me with ads, AND actually helped me understand the connection between caffeine and sleep.

So I built one myself. Called it Coffee Police 👮☕

It's live now as V1.0, but I'm sure I'm missing things that could help people like me. Give it a try and drop your feedback in the comments - what works, what doesn't, what should I add?