When our daughter was born, like every new parent, we had no idea what we were doing. But being an engineer, I found value in tracking some basic things—not for any grand reason really. It was mostly to check back over the last few days and see if we were doing things properly, or if something needed adjusting.
We ended up using an app called BabyConnect to track her sleep and feeding cycles for the first 12 months.
GitHub: utsengar/eva
#The Data
The data turned out to be pretty fun. We pulled some interesting patterns from it back then. If LLMs existed 6yrs ago, it could have been much more interesting.
The CSV contains:
- Date and time
- Duration (minutes)
- Activity type (sleep, feed, etc.)
- Quantity
- Notes
- Caregiver
#Six Years Later: Let Claude Code Analyze It
So over the holidays, I decided to revisit this data after six years. But this time, rather than analyzing it myself, I asked Claude to do it for me.
Here’s what Claude found:
🤖 The following analysis was generated by Claude Code
#Dataset Overview
- Total Records: 4,207 entries over 358 days (almost 1 year!)
- Date Range: Dec 20, 2019 to Dec 12, 2020
- Activities: Sleep (44%), Bottle feeding (32%), Nursing (23%)
#Key Patterns Discovered
1. Sleep Evolution
- Average sleep duration doubled over the year: 127 min → 253 min (+99.8%)
- Night sleep averages 5.3 hours per session
- Day naps average 55 minutes
- Total sleep: 13 hours/day (within healthy range)
- 139 nights with 10+ hour sleep (mostly in later months)
2. Sleep Consolidation
- Night sleep is 5.7x longer than day naps—excellent consolidation!
- Most common sleep times: 7-8 PM (bedtime) and 8-9 AM (morning nap)
- Shows clear circadian rhythm development
3. Feeding Patterns
- Average: 4 feedings/day, 21.7 oz/day
- Typical bottle size: 5.4 oz
- Most common feeding times: 7 PM (before bed), 4 PM, and 2 PM
- Range: 1-38.5 oz per day (high variability suggests growth spurts)
4. Temporal Patterns
- Clear bedtime routine established around 7 PM
- Feeding often precedes sleep (especially at night)
- Weekend vs weekday patterns exist
#Generated Visualizations
Activity Patterns by Hour of Day
Sleep Duration Over Time
Bottom Line: Eva showed excellent sleep development—doubling her sleep session length and establishing a consistent night sleep routine by month 11. The data shows healthy sleep consolidation and predictable feeding patterns typical of a well-developing infant.
If you’re a new parent tracking similar data, feel free to use the repo as a reference or build something cool with it. Ping me @utsengar if you do! It’s, of course, a data point of one, so I would not draw any conclusions about babies from this.