07:10
Good morning.
One tap and napnap knows the day has begun. The screen goes from night to daylight.
Night19:40 – 07:10
Slept10 h 50 min
Wake-ups2
The next nap, before it comes.
napnap learns your baby's rhythm and tells you when they will get sleepy. One hand, in the dark, at four in the morning.
No ads, no card, and your data is not sold to anybody.
- SleepA 14-day forecast
- FeedsBreast, expressed and formula
- FoodA 52-week plan
- GrowthOn the WHO curves
- CalendarSymptoms, medicine and notes
- ForumWith babies their age
- AlertsOn every phone in the house
- ClaudeAsk how they sleep
A day with napnap.
From the first waking to the last alert, what you see on the screen at each hour.
09:40
The next one, already worked out.
From what it learnt about their days, it tells you when they will get sleepy. And every week it gets a little sharper.
Nap 2~12:15 · ±14 min
Nap 3~15:30 · ±19 min
Bedtime~19:30 · ±23 min
12:30
The side that's next.
Which was last, how long each side lasted and how long ago. Nothing written on paper.
Left · 10:1614 min
Right · 07:2511 min
Left · 04:409 min
13:15
What to try this week.
A plan for starting solids, week by week, with the allergens in their time.
Pearloved it
Courgettetwo spoonfuls
Chickentomorrow
15:40
Their growth, on the WHO curves.
Write down what the scales said and see their percentile, drawn on the real tables.
Weight6.9 kg · p50
Length64 cm · p45
Head41.5 cm · p55
18:55
It tells you first.
A few minutes before they get sleepy, on both phones. And at night, silence.
napnap2 h ago
Diego recorded a feed: left, 14 min.
Down to the last detail.
What does not have an hour of the day, but is there when you look for it.
A calendar for everything that isn't sleep.
Symptoms, medicine, the vaccine, the first tooth. One tap each, and the month remembers it for you.
And when it helps, people.
Ask families with babies the same age, under an alias, without anyone having to quiz you first.
Two phones, one home.
What one of you records, the other sees at once, and each chooses their own alerts.
If they get ill, it waits.
The odd days go on pause and do not spoil their times.
The report for the paediatrician.
Sleep, measurements with their percentile and feeding, in a one-page PDF.
±14 min
Every time comes with a margin.
It does not pretend to know what it does not, and the margin narrows as it learns.
€0
Free. No catch.
No ads, no card, and your data is not sold to anybody.
With an API, for whoever wants it.
iOS Shortcuts, scripts, home automation: ask how it is going and it answers with a sentence.
GET /api/v1/say
Aurora has been awake 1:52. Nap due around 19:30.
Read the APIAsk Claude how they are sleeping.
napnap plugs into Claude as a connector. Ask in your own words —how the week went, whether the naps are getting shorter, what time bedtime should be tonight— and it answers from your home’s nights, not from an internet average. It can also record or correct a sleep or a waking when you ask it to, and tells you what it saved.
In Claude, Settings → Connectors → Add custom connector, with this address. You sign in with your napnap account and allow it once.
https://napnap.es/api/mcp
No app store.
It installs from the browser in seconds and opens like any other app.
iPhoneiPadAndroid
In numbers.
- €0
- Free, with nothing behind it
- 92
- Foods in a 52-week plan
- 14 days
- Of forecast, every hour with its margin
- 3 curves
- Weight, length and head, from the WHO
- 80
- Documented API doors
- 2
- Forum alerts, and no more
Made for four in the morning.
Dark while they sleep, bright when they wake. One big button, nothing to read and no menu to hunt through with a baby in your arms.
What almost no app will tell you
That at the start it knows nothing about your baby. napnap begins with the table for their age and says so with a number —«40 % of this is theirs by now»— until it has enough recorded. A forecast that will not admit how much it is making up is a forecast you cannot lean on when it matters.
How it decides the hoursWhy this one and not another
The questions you ask yourself before installing anything, and what napnap answers. Everything on this list is about napnap and can be checked by opening it.
What time is the next one due?
The time comes from your baby's rhythm, not from the table for their age: it starts with the table and within a few days they are in charge. And it is the only one that tells you what part of that forecast is already theirs and what part is still the table, as a percentage.
What about my partner? Do we have to use the same phone?
No. You add their email in Settings and they sign in with theirs, on their phone: you see the same home, the same baby and the same records, and each of you chooses which alerts to get. Their address stays on the home's list, so even if they lose the invitation and ask for a link six months later, they still get in.
What if we record nothing one day?
Nothing breaks. A blank day is not counted as a day without sleep, and if they were ill you pause it —or the app asks you the next morning— and that day leaves their averages. Their times stay the times of their ordinary days.
Are they putting on weight?
You record what the scales said and see the centile against the WHO bands, taken from their own tables. That is where the report for the doctor comes from: two weeks of sleep, the measurements with their centile and the reactions to food, on one page of PDF.
Is what is happening to us normal?
You ask homes with babies the age of yours, and your question carries the context the app already has, so nobody has to interrogate you. With a handle, with photos if they help, and with the urgent kept out: if you write something that cannot wait, napnap does not publish it, it sends you to 112.
And if one day I want to leave?
You take the whole history with you whenever you like, as JSON or as spreadsheets, from Settings. And there is a documented API you can use to do everything the app does from outside it, iPhone shortcuts included.
What is this going to cost me?
Nothing. There is no paid tier and there will not be one in exchange for what you already recorded, there are no ads, there are no trackers, and your data is neither sold nor used to train anything.
At what age do babies go from three naps to two?
Usually between six and nine months, but age only says when it tends to happen. What says whether your baby is due is whether the naps they take already fill their day up to bedtime.
Read the whole guideHow long does it take to learn my baby's rhythm?
With two or three days of records, what your baby does already counts for more than the table for their age. At around eight useful windows the confidence is full, and the app tells you the percentage at every moment.
Read the whole guideWhen do solids start?
Six months is what the WHO recommends. napnap shows the section from five months, because the month before is when it gets prepared, and it will not let a date be set before four months completed.
Read the whole guideGuides
The questions that end up being typed at three in the morning, answered at length.
- Wake windows by age: how long a baby stays awake
- When to drop a nap: the answer in minutes, not months
- How many naps a baby needs, by age
- Bedtime: why it is not calculated, it is measured
- The 4-month sleep regression: what it is and what it is not
- Starting solids: the order, the iron and the textures
- Recording feeds: which side is next and how long since the last
- Recording a nap with Siri: napnap and iPhone Shortcuts
- The napnap API: a baby sleep log with an open API
And against Napper
Napper is the best-known baby sleep app in Spanish. These are the differences you notice day to day.
Read the full comparisonStart tonight.
Start for free
No ads, no card, and your data is not sold to anybody.