New parents tend to fall into two camps. There's the camp that tracks everything obsessively for the first month and quietly burns out by week three. And there's the camp that tracks nothing and gets caught flat-footed when the pediatrician asks how diapers are going. Both are reasonable starting points. Both are the wrong place to land.
This is what's actually worth logging in the first months, and how to keep the logging from turning into a second job.
Why bother tracking at all
Three reasons that hold up:
- Your sleep-deprived memory is unreliable. "When did she last eat?" is a real question with a real answer. Trying to compute it from memory at 3 AM doesn't work.
- Pediatricians ask specific questions. "How are diapers?" "How many feeds a day?" "How long are the night stretches?" Knowing the actual numbers helps the visit be useful rather than vague.
- Patterns emerge that you can't see in real time. Looking back at a week of feeds and naps reveals rhythms: which nap is reliable, which isn't, which feeds run long.
What tracking is not for:
- Comparing your baby to other babies
- Hitting "ideal" numbers from a book
- Optimizing your way to a "good" baby
- Adding more to your to-do list
If tracking is making you anxious rather than useful, you're tracking too much.
The minimum useful set (first 6 weeks)
In the first six weeks, four things are genuinely worth logging. Anything beyond this is bonus.
1. Feeds
Time, side (if nursing) or amount (if bottle). That's it. Duration is optional and usually not that informative. What matters is that the feed happened.
Why it's worth it: at 3 AM, knowing the baby last fed at 1:15 AM (and not actually 12:30 AM as you might guess) helps you make the right call about whether the current crying is hunger or something else.
2. Diapers
Wet, dirty, or both. A simple tap. Diaper output is the single best home indicator of whether feeding is going well in the early weeks, and you'll be asked about it at every pediatrician visit.
3. Sleep, start and end of stretches
You don't need to log every micro-nap. What matters is the longest stretch in 24 hours and a rough sense of whether daytime sleep is happening at all.
A simple "she slept 11 PM – 3 AM, then 3:30 AM – 5 AM" log entry is far more useful than trying to capture every drowsy moment. Pediatricians ask about night stretches; you'll want to remember.
4. Anything unusual
A short note when something stands out: a fever check, an unusual rash, a fall, a missed feed, a particularly hard-to-wake morning. You'll forget the exact timing within hours, and if you end up calling the pediatrician, "she felt warm Tuesday morning" is more useful than "I think it was a few days ago?"
Things that aren't worth tracking obsessively
A short list of things parents log that usually don't help:
- Tummy time, to the minute. Aiming for "some tummy time most days" is enough.
- Every spit-up. Most spit-up is normal. A general sense of frequency is enough.
- Mood. Real moods aren't categorical, and "fussy" is a short journal entry, not a metric.
- Detailed feed durations past the first few weeks. Once you know your baby is feeding well, length doesn't tell you much.
- Detailed sleep environment data (room temp, swaddle vs. sleep sack, etc.). Useful for one or two nights when something is mysteriously wrong; not as a daily log.
- Wake windows down to the minute. A range is fine. Aiming for "about 90 minutes" is enough.
What changes after 6 weeks
The diary-of-everything approach makes sense in the first six weeks because patterns aren't yet visible and the pediatrician visits ask specific questions. After that, most parents can ease up considerably.
By 8–12 weeks, useful logging is usually:
- Quick taps for feeds and diapers (helpful for the partner / nanny / grandparents handoff)
- A rough note for the longest night stretch
- An occasional growth-related observation (new milestone, feeding shift, etc.)
By 4–6 months, many parents have shifted to logging only feeds and naps, and only because the household needs to coordinate.
The handoff problem
The under-discussed reason logging matters: multiple people care for the baby. Partners, grandparents, nannies, friends helping out. Without a shared system:
- "Did she eat already?" becomes a guessing game
- The baby gets fed twice or not at all
- Schedule shifts get blamed on the baby when they're really logistics
- The partner returning from work has no idea what kind of day it's been
A shared log, even just a simple shared notes app, turns "where are we today?" into a 3-second glance. This is one of the highest-leverage uses of tracking. It pays for itself in not-arguments alone.
Phone vs. paper vs. spreadsheet vs. app
There's no universally right tool. A few considerations:
- Paper: instant, no battery, no setup. Hard to share with a partner. Loses the data when the notebook fills up.
- Notes app: zero learning curve. Hard to query ("what was last week's average?" requires re-reading every entry).
- Spreadsheet: powerful but adds friction. Most people don't keep it up past week two.
- A dedicated tracker app like Tottli: designed for one-handed taps, shared with partners, summaries you can show the pediatrician.
Whatever you use, the test is the same: can you log a feed in under 5 seconds, with one hand, in the dark? If yes, you'll keep using it. If no, you won't.
When the system breaks down
Logging fatigue is real. Signs it's happening:
- You've stopped logging some entries because it feels pointless
- You feel guilty when an entry is missing
- The log is generating arguments instead of preventing them
- You're spending more time on the log than acting on what it shows
If any of those are happening, the right move is to log less. Drop everything except the absolute minimum that's still useful. Logging is a tool. If the tool isn't serving you, change the tool.
A simple weekly review
Once a week, take five minutes to look back at the week. Most parents are surprised by what shows up:
- A nap pattern that's actually quite consistent (you didn't notice)
- A feed at a particular time that's reliably long (so plan around it)
- A specific window of fussiness most days (often related to wake windows)
- A diaper pattern that's stable (relief)
- Or, occasionally, a real signal that something has shifted
The review takes longer than a single log entry but pays off more. It's also where the tracking earns its keep, not from the moment-to-moment data but from the pattern that emerges from a week of it.
What to do when you're past needing this
By the time the baby is on solids, eating real meals at family mealtimes, sleeping in real nighttime stretches, and napping on a recognizable schedule (usually somewhere between 6 and 9 months), most of the tracking can stop. You'll know the rhythm without writing it down.
A small set of things stays useful for longer: marking when solid foods were first introduced (allergens), noting illness symptoms with timestamps, tracking growth milestones for posterity. Everything else is happily retired.
The shorter version
Track the minimum that helps you and the people sharing the work, in a tool that takes seconds rather than minutes to use. Use the data when it's actually decision-time: diaper counts at the pediatrician visit, "when did she last eat?" at 3 AM, the weekly pattern review. Everything else is noise.
Logging is a tool to free you from holding the day in your head. It is not a daily exam.