# nappi > Baby sleep and activity tracker built for Latin American families. Available in English, Spanish, Portuguese, Italian, French, and German. nappi helps parents track sleep, feedings, diapers, pumping, growth, milestones, and activities. It features SleepSense, an AI-powered nap prediction engine based on peer-reviewed sleep science that learns each baby's unique rhythm. ## Key Pages - [Home](https://nappi.app/): Main landing page with features, pricing, and download links - [How It Works](https://nappi.app/how-it-works): Technical deep dive into the SleepSense nap prediction algorithm with research citations - [Contact](https://nappi.app/contact): Get in touch with the nappi team — support, feedback, partnerships, press, or just to say hi - [Privacy](https://nappi.app/privacy): Data handling and privacy practices - [Terms](https://nappi.app/terms): Terms and conditions - [Latam](https://nappi.app/latam): Landing page for Latin American families with regional pricing - [Compare](https://nappi.app/compare): How nappi compares to Huckleberry, Baby Tracker, Nara Baby, and Napper, and how to switch without losing your data - [Resources](https://nappi.app/resources): Hub page with all baby sleep and feeding tools - [Wake Windows](https://nappi.app/resources/wake-windows): Interactive wake window calculator and chart for babies 0-24+ months - [Sleep Needs](https://nappi.app/resources/sleep-needs): How much sleep babies need by age, with total/night/daytime breakdown - [Sleep Regression](https://nappi.app/resources/sleep-regression): Interactive checker for the 5 major sleep regressions (4, 8-10, 12, 18, 24 months) - [Feeding Guide](https://nappi.app/resources/feeding-guide): Feeding amounts and frequency by age, from newborn through 24 months - [Bedtime Guide](https://nappi.app/resources/bedtime-guide): Ideal bedtime, wake time, and night sleep hours by age - [Growth Chart](https://nappi.app/resources/growth-chart): WHO growth chart calculator for weight, height, and head circumference - [Nap Transition](https://nappi.app/resources/nap-transition): When and how babies drop naps — the 4-to-3, 3-to-2, and 2-to-1 transitions - [Teething Sleep](https://nappi.app/resources/teething-sleep): How teething disrupts baby sleep and what to do about it - [Night Weaning](https://nappi.app/resources/night-weaning): When and how to night-wean without crying it out - [Foods](https://nappi.app/resources/foods): First 100 foods catalog — when and how to introduce each food safely - [Allergens](https://nappi.app/resources/allergens): Big-9 allergen introduction guide with clinical citations (milk, eggs, peanuts, etc.) - [Milestones](https://nappi.app/resources/milestones): Interactive baby developmental milestone tracker by age (CDC 2022 data) - [Tummy Time](https://nappi.app/resources/tummy-time): How much tummy time babies need by age, with session length, frequency, and tips that work - [Reflexes](https://nappi.app/resources/reflexes): Newborn reflex tracker covering Moro, rooting, palmar grasp, Babinski, and more, with when each reflex fades ## Blog Research-backed guides on infant sleep, feeding, and development. Available in 6 languages. - [Best Family Album Apps Compared (2026)](https://nappi.app/blog/best-family-album-apps): An honest look at the best family album apps in 2026: FamilyAlbum, Tinybeans, Google Photos, Apple Shared Albums, Qeepsake, and nappi Family Album. - [Baby Fever: When to Call, What to Skip, What Actually Helps](https://nappi.app/blog/baby-fever-when-to-call): A simple decision tree for infant and toddler fevers, what the AAP says about acetaminophen and ibuprofen by age, and when to skip Tylenol and just call. - [Baby Teething: Symptoms, Pain Relief, and What to Avoid](https://nappi.app/blog/baby-teething-pain-relief): What actually helps a teething baby, what to skip (FDA warns about benzocaine, homeopathic tablets, and amber necklaces), and how to spot real symptoms. - [Dropping to One Nap: When and How to Make the Shift](https://nappi.app/blog/drop-to-one-nap): When to drop the second nap (most babies 13-18 months, average 14), the signs that you're really ready, and how to handle the bedtime mess in the middle. - [Infant Reflux: Spit-Up, GERD, and When It's a Problem](https://nappi.app/blog/infant-reflux-spit-up): Almost all babies spit up but very few have GERD. How to tell a happy spitter from a baby who needs help, what actually works, and what to skip entirely. - [Starting Daycare: The First Six Weeks, Honestly](https://nappi.app/blog/starting-daycare-first-weeks): What actually happens in the first six weeks at daycare: separation, the constant illness, sleep disruption, and what's worth doing before drop-off day. - [Separation anxiety in babies: when it starts and what helps](https://nappi.app/blog/separation-anxiety): Why your baby suddenly cries when you leave the room, when separation anxiety usually peaks, and the small daily moves that actually help at home. - [Best Baby Tracker Apps for Apple Watch and Wear OS](https://nappi.app/blog/baby-tracker-apple-watch-wear-os): Most baby trackers ship an Apple Watch app and call it done. We compare which apps have working Wear OS support too, and what watch tracking actually solves. - [How to Get the Most Out of nappi](https://nappi.app/blog/how-to-use-nappi-highlights): A quick tour of what nappi can do, in roughly the order you'll discover it. Tracking, predictions, photos, the watch, family sync. - [Cluster Feeding: What's Normal for Newborns](https://nappi.app/blog/cluster-feeding-newborns): Why your newborn nurses every 40 minutes for four hours straight, when cluster feeding peaks, and how to tell it apart from low supply or reflux. - [Daylight Saving Time With a Baby: A 4-Day Plan](https://nappi.app/blog/daylight-saving-baby): Shift bedtime by 15 minutes a night for 4 nights and let morning light do the rest. The spring-forward and fall-back playbook, backed by circadian science. - [How Much Formula Does a Baby Need by Age?](https://nappi.app/blog/how-much-formula-by-age): A day-by-day and month-by-month formula chart from newborn to 12 months, with the AAP's weight-based rule and the 32 oz ceiling explained. - [Separation Anxiety and Sleep at 7 to 9 Months](https://nappi.app/blog/separation-anxiety-sleep): Why bedtime suddenly got harder around 7 months, what separation anxiety is doing to naps, and how to tell it apart from the 8-month sleep regression. - [Wet Diapers by Day: A Newborn Hydration Chart](https://nappi.app/blog/wet-diapers-by-day): Day 1 expect one wet diaper, day 5 expect six. The newborn diaper-count chart pediatricians use, with what each number actually means. - [Introducing Allergens to Your Baby: A Practical Guide](https://nappi.app/blog/allergen-intro): Introduce peanut, egg, and dairy between 4 and 6 months. The LEAP trial showed this cuts peanut allergy by 81%. Here's how to do it safely. - [BLW vs Purées vs Combo Feeding: What the Research Says](https://nappi.app/blog/blw-vs-puree): Baby-led weaning, purées, or a mix? Research shows growth, iron, and choking risk are similar. Here's how to pick the approach that fits your family. - [Gagging vs Choking: How to Tell the Difference](https://nappi.app/blog/gagging-vs-choking): Your baby gagged on a banana. Is it choking? Here's how to tell gagging from choking, what to do in each case, and which foods to avoid before age 4. - [Iron for Babies: Why It Matters and How to Get Enough](https://nappi.app/blog/iron-for-babies): Around 6 months, babies need iron from solids. Breast milk alone isn't enough. Here's how much they need, which foods work, and how to avoid deficiency. - [The 12-Month Sleep Regression (Or Is It a Nap Transition?)](https://nappi.app/blog/12-month-sleep-regression): Your 1-year-old's sleep is falling apart. Most 12-month "regressions" are actually the 2-to-1 nap transition starting early. Here's how to tell. - [The 4-Month Sleep Regression, Actually Explained](https://nappi.app/blog/4-month-sleep-regression): Your 4-month-old was sleeping great, and now nothing works. Here's what's actually happening inside their sleep, and the 5 things that help. - [The 8-Month Sleep Regression, Actually Explained](https://nappi.app/blog/8-month-sleep-regression): Your 8-month-old stood up in the crib at 2 AM and screamed. Here's what's driving the 8-10 month regression and the handful of things that actually help. - [Why Your Baby Fights Sleep (and What to Do)](https://nappi.app/blog/baby-fights-sleep): A baby who used to go down easy now arches, cries, and fights bedtime. Here's why bedtime resistance almost always means overtired, and what actually fixes it. - [Baby Sleep Habits Around the World](https://nappi.app/blog/baby-sleep-around-the-world): Bedtimes differ wildly across cultures, but total sleep varies far less. A look at how families raise sleeping babies in different parts of the world. - [Best Baby Tracker Apps Compared (2026)](https://nappi.app/blog/best-baby-tracker-apps): An honest comparison of Huckleberry, Baby Tracker, Glow Baby, BabyConnect, Hatch, Wonder Weeks, and nappi. What each one wins at, and where each falls short. - [Bilingual Parenting: Managing Routines Across Languages](https://nappi.app/blog/bilingual-parenting-routines): Raising a bilingual baby feels like a lot until you see the research. A practical playbook for OPOL, minority language at home, and routines that stick. - [Early Morning Wakes, Causes and Fixes](https://nappi.app/blog/early-morning-wakes): Why your baby wakes at 5 AM and what actually fixes it. The cortisol cycle, the 8 likely causes ranked, and what to try (and skip) first. - [Why Family Sync Matters for Baby Tracking](https://nappi.app/blog/family-sync-baby-tracking): Baby tracking only works when both parents see it. Why real-time family sync reduces mental load, status texts, and the invisible caregiver tax. - [How Sleep Predictions Actually Work (And Why Most Apps Get Them Wrong)](https://nappi.app/blog/how-sleep-predictions-work): Static age charts fail because babies vary. Here's how a wake window tracker should actually predict the next nap, and the signals a good one uses. - [How to Use a Baby Sleep Tracker Effectively](https://nappi.app/blog/how-to-use-sleep-tracker): A baby sleep tracker only works when you log the right things, not everything. Here's what actually matters, what to ignore, and when patterns show up. - [What Your Baby's Sleep Patterns Actually Mean](https://nappi.app/blog/reading-sleep-patterns): Tracking your baby's sleep is easy. Reading the data is the hard part. Here's how to tell when a pattern means "adjust something" vs "do nothing. - [Short Naps: Why They Happen and When They Stop](https://nappi.app/blog/short-naps-guide): Your baby wakes up at exactly 30 minutes. Here's the sleep cycle science behind short naps, when they're normal, and what actually extends them. - [Sleep Training Methods Compared, Honestly](https://nappi.app/blog/sleep-training-methods): Ferber, full extinction, chair, pick-up/put-down, fading, no-cry. What each method actually is, the evidence, and how to pick one your household can stick with. - [Tracking Baby Growth: Understanding WHO Percentiles](https://nappi.app/blog/understanding-growth-percentiles): What baby growth percentiles actually mean, how WHO and CDC charts differ, and when doctors care about a change. A calmer read for anxious parents. - [Baby Vaccine Schedules by Country, Compared](https://nappi.app/blog/vaccine-schedules-by-country): How infant vaccine schedules differ across the US, UK, Mexico, Brazil, Argentina, Chile, Colombia, Italy, France, and Germany. - [What Happens When Your Baby Misses a Nap](https://nappi.app/blog/what-happens-when-baby-misses-nap): A missed nap isn't a disaster. What it does to bedtime tonight, when to push through to the next wake window, and when to bring bedtime earlier instead. - [Why Your Baby Might Need an Extra Nap Today](https://nappi.app/blog/why-baby-needs-extra-nap): Some days the two-nap schedule falls apart. Here's why a surprise third nap is sometimes the right answer, and how to tell when to offer one. - [Why Baby Photos Deserve Their Own Private Place](https://nappi.app/blog/safe-baby-photo-sharing): Sharing baby photos with family doesn't have to mean posting them on social media. Here's the case for keeping those pictures in a private family space. - [12-Month-Old Sleep Schedule](https://nappi.app/blog/sleep-schedule-12-months): A research-backed 12-month-old sleep schedule with wake windows, nap timing, the 12-month regression, and why your toddler still needs 2 naps. - [11-Month-Old Sleep Schedule](https://nappi.app/blog/sleep-schedule-11-months): A research-backed 11-month-old sleep schedule with wake windows, nap guidance, the approaching 12-month regression, and tips for walking babies. - [10-Month-Old Sleep Schedule](https://nappi.app/blog/sleep-schedule-10-months): A research-backed 10-month-old sleep schedule with wake windows, nap times, feeding tips, and how to handle motor milestone sleep disruptions. - [9-Month-Old Sleep Schedule](https://nappi.app/blog/sleep-schedule-9-months): A research-backed 9-month-old sleep schedule with wake windows, nap times, and tips for handling separation anxiety and new motor skills. - [8-Month-Old Sleep Schedule](https://nappi.app/blog/sleep-schedule-8-months): A research-backed 8-month-old sleep schedule with wake windows, nap counts, the 8-month regression, and tips for this busy developmental stage. - [7-Month-Old Sleep Schedule](https://nappi.app/blog/sleep-schedule-7-months): A research-backed 7-month-old sleep schedule covering wake windows, the 3-to-2 nap transition, feeding, and bedtime timing. - [6-Month-Old Sleep Schedule](https://nappi.app/blog/sleep-schedule-6-months): A realistic 6-month-old sleep schedule based on pediatric sleep research, with wake windows, nap times, and bedtime guidance. - [5-Month-Old Sleep Schedule](https://nappi.app/blog/sleep-schedule-5-months): A realistic 5-month-old sleep schedule with wake windows, nap transitions, and bedtime tips backed by pediatric sleep research. - [4-Month-Old Sleep Schedule](https://nappi.app/blog/sleep-schedule-4-months): A realistic 4-month-old sleep schedule with wake windows, nap counts, and what's really going on with the 4-month sleep regression. - [3-Month-Old Sleep Schedule](https://nappi.app/blog/sleep-schedule-3-months): A research-backed 3-month-old sleep schedule with wake windows, nap counts, feeding tips, and what to expect before the 4-month regression. - [2-Month-Old Sleep Schedule](https://nappi.app/blog/sleep-schedule-2-months): A realistic 2-month-old sleep schedule with wake windows, nap expectations, and what changes as your baby's circadian rhythm starts to develop. - [1-Month-Old Sleep Schedule](https://nappi.app/blog/sleep-schedule-1-month): What a 1-month-old sleep schedule actually looks like, with realistic wake windows, nap expectations, and feeding rhythms backed by research. - [Why I Built a Better Baby Tracker](https://nappi.app/blog/why-i-built-nappi): When my son was born, I tried every baby tracking app. Many had limited or no Spanish support, and none were built with Latin American families in mind. So I built my own. ## Detailed Info - [Full product details](https://nappi.app/llms-full.txt): Complete feature list, pricing, technical details, and sleep science data