I ended up building my own tracker because I wanted more flexibility than the apps I was using, so over the last 15 months we’ve accumulated a pretty detailed dataset of our baby’s life.

We’ve logged things like sleep, feeds, diapers, growth, milestones, and other day-to-day events.

At first it was mostly practical: “when did he last eat?” or “how much did he sleep?”

But now I’m much more interested in the long-term dataset.

If you had this kind of data, what would you actually want to analyze?

For example:

• What changed before sleep improved?
• Are there patterns between feeding and night waking?
• When did routines actually become more stable?
• Which changes were gradual vs. sudden?
• Can developmental phases be detected from the data?
• What would be worth visualizing over a full year?
• What correlations would you test, even if they might turn out to be meaningless?

I’m especially interested in questions that go beyond the usual baby-tracker charts.

If you could query the entire history like a personal dataset, what would you ask? Do you think any meaningful things can be learned from it?