Baby Development Blog
Expert articles on baby growth, sleep, nutrition and milestones based on WHO standards.
Baby Doctor Visit Checklist: What to Track and Ask Before the Appointment
A calm checklist for your baby's doctor visit: what to track in the week before, which questions to ask the pediatrician, and how Sunny Seed turns a week of notes into one clear summary.
Newborn Feeding and Diaper Log: What to Track in the First Weeks
A practical newborn feeding and diaper log guide: feeds, wet diapers, stools, context, warning signs, and how Sunny Seed keeps the timeline clear.
Diaper Rash in Babies: What to Track Before You Call the Pediatrician
A calm guide to diaper rash in babies: what to log, what may trigger it, when to call a pediatrician, and how Sunny Seed keeps the timeline clear.
Bottle Feeding Tracker App: What to Log Without Overtracking
A practical bottle feeding tracker app guide for amounts, formula or expressed milk, timing, diapers, growth context, and pediatrician questions.
Breastfeeding Tracker App: What to Log Without Overtracking
A practical breastfeeding tracker app guide for sides, timing, cluster feeding, diapers, weight context, and pediatrician questions — without turning feeds into stress.
Digital U-Heft App: A Practical Child Health Record Companion
A digital U-Heft app can help parents keep checkups, growth, vaccines, symptoms, medications, and doctor notes together without replacing the official booklet.
Baby Weight Chart by Month: How to Track Growth Calmly
Use a baby weight chart by month without panic: learn what monthly weight patterns can show, how WHO growth charts help, and when to ask your pediatrician.
Premature Baby Growth Chart: Corrected Age Without Panic
A calm guide to premature baby growth charts, corrected age, Fenton charts, WHO growth charts, milestones, and what Sunny Seed helps parents record.
Baby Diaper Tracker App: What Wet and Dirty Diapers Can Tell You
How to use a baby diaper tracker app to log wet diapers, dirty diapers, feeding context, and pediatrician questions without overtracking every change.
Baby Growth Percentile Calculator: What the Number Really Means
Use a baby growth percentile calculator calmly: learn what WHO percentiles, z-scores, weight, length, and head circumference can show — and what they cannot diagnose.
Baby Data Privacy App: What Parents Should Check Before Tracking
A baby data privacy app should protect sleep, feeding, growth, photos, and family notes. Learn what to check before storing child data in an app.
AI Baby Assistant: Helpful Context Without Replacing Your Pediatrician
How an AI baby assistant can help parents use diary notes, sleep logs, feeding records, growth charts and milestones more calmly — with clear medical limits.
Baby vaccination schedule: how to track vaccines by country
A calm guide to the baby vaccination schedule: what changes by country, what to record, and how Sunny Seed helps parents keep reminders and history together.
Starting solids tracker app: what to log from first tastes to reactions
Use a starting solids tracker app to record new foods, amounts, reactions, allergens, and notes for calmer conversations with your pediatrician.
Shared Baby Diary App: Keep Both Parents in the Loop
How a shared baby diary app helps parents and trusted family log sleep, feeds, diapers, photos, milestones, and notes without scattered chats.
Baby Memory Book App: Save the First Year Without Losing Moments
How a baby memory book app helps parents turn photos, diary notes, milestones, monthly letters, and family memories into a calm first-year story.
Baby Sleep Tracker App: Log Naps and Nights Without Stress
How to use a baby sleep tracker app for naps, wake windows, night wakings, feeds, and pediatrician conversations — without obsessing over every minute.
Baby Feeding Tracker App: What to Log in the First Year
How to use a baby feeding tracker for breastfeeding, bottles, pumping, solids, reactions, and pediatrician visits without turning every day into admin.
Baby Milestone Tracker App: How to Follow Development Without Panic
What to track in a baby milestone app, how to understand normal variation, and when milestone notes are useful for pediatrician visits.
Digital Baby Health Record: What to Keep in One App
A digital baby health record helps parents keep growth, vaccinations, pediatrician notes, milestones, feeding, sleep, and documents together from day one.
How to Keep a Baby Diary in the First Year: What to Track and What to Skip
A practical first-year baby diary guide: what to track, what to skip, and how to keep sleep, feeding, growth, photos, and memories manageable.
Baby Diary App: How to Choose One That Actually Helps
How to choose a baby diary app for the first year: sleep, feeding, diapers, growth, milestones, photos, shared access, privacy, and calm tracking.
Baby Tracker: What to Log in the First Year and Why It Helps
A simple guide to baby tracking in the first year: sleep, feeding, diapers, growth, milestones, and memories — without turning parenting into a spreadsheet.
Baby Growth Chart Explained: How to Track Growth Without Stress
A calm parent-friendly guide to baby growth charts, percentiles, weight, length, head circumference, and when to talk to your pediatrician.
SIDS and Safe Sleep: What Actually Reduces the Risk
Evidence-based SIDS and safe sleep guidance: back sleeping, firm mattress, room sharing, overheating, risk factors, and when to ask a doctor.
Baby Fever: When to Worry, When to Wait at Home
Evidence-based guide to infant fever. Temperature thresholds by age, when to call the pediatrician, when to go to the ER, and what actually helps at home.
Baby Choking: First Aid Step-by-Step and How to Prevent It
Infant choking first aid: how to recognize choking vs gagging, step-by-step back blows and chest thrusts for babies under 1 year, and how to prevent choking.
Baby Developmental Delays: Red Flags vs Normal Variation
How to tell normal developmental variation from baby developmental delay red flags, when to track milestones, and when to talk to a pediatrician.
Baby Emergency Red Flags: 10 Symptoms That Can't Wait Until Morning
The 10 pediatric emergency symptoms every parent should recognize: when to call emergency services for your baby instead of waiting until morning.
Baby Teething: Symptoms, Timeline and How to Help
When do baby teeth come in? Complete teething symptoms timeline, what's actually caused by teething (and what isn't), and how to soothe a teething baby safely.
Baby Developmental Leaps: What Are Wonder Weeks?
Baby developmental leaps (Wonder Weeks) explained: what they are, when all 10 happen by age, why babies get fussy, and how to help them through each one.
Newborn Sleep Schedule: What to Expect in the First 3 Months
Newborn sleep schedule for 0–3 months: realistic wake windows, naps, night sleep, feeding rhythm, and when sleep concerns need a pediatrician.
Best Baby Sleep Tracker Apps in 2026: An Honest Comparison
A practical comparison of baby sleep tracker apps in 2026: logging, patterns, reminders, sharing, privacy, and when an app is actually useful.
5 Best Baby Development Tracking Apps in 2026
A practical comparison of baby development tracking apps: sleep, feeding, growth, milestones, photos, sharing, privacy, and daily usability.
When to Start Solids: A Complete Guide for Parents
When to introduce solid food, signs of readiness, which foods to start with, and what to avoid. Evidence-based guidance for parents.
How Much Sleep Does a Baby Need? Sleep Schedule by Age
Baby sleep needs by age: total sleep, naps, wake windows, realistic schedules, tired signs, and when to discuss sleep with your pediatrician.
When Do Babies Start Walking? WHO Developmental Norms
Most babies walk between 9 and 18 months. Complete WHO baby developmental milestones by month for gross motor development and what to watch for.
Baby Weight and Height Charts by Month: WHO Standards
Complete WHO growth charts for babies 0–24 months. Normal weight, height and baby growth percentile calculator for boys and girls, plus when to be concerned.