Sleep, gently
tracked.
Meet Caro — the warm, intelligent sleep companion that helps you build a predictable routine for your baby, one nap at a time.
Track today.
Sleep better tomorrow.
Two halves of the same calm: a tracker that quietly captures the day, and a coach that helps tonight go smoother.
Every nap, every nightwake — captured.
Naps, night sleep, and total hours visualized day, week, and month.
Start a nap with a single tap. Carol does the math at 3 AM so you don't have to.
Spot wake windows, regressions, and the rhythm hiding in your week.
A gentle path to longer stretches.
Age-appropriate suggestions for the next nap — no rigid schedules.
Build a wind-down routine that sticks, with reminders that respect your evening.
Methods grounded in pediatric sleep research — adapted for real families.
Everything you need.
Nothing you don't.
Caro is designed for tired parents at 3 AM. Every screen earns its place.
Build a predictable sleep routine
Plan naps and nighttime sleep with intuitive timelines. Caro learns your baby's rhythm and suggests the perfect next window.
Baby's day, beautifully recorded
Feedings, diapers, naps, daily care — everything in one calm, scrollable timeline. No spreadsheets. No stress.
Feeding, made simple
Track breastfeeding, bottles, complementary feeding and water with one tap. Side, volume, and time — all gently captured.
Note your baby's mood
Log mood and fatigue alongside sleep. Discover what helps your little one settle and what throws the day off.
Four small steps to
calmer nights.
Free on iOS. Set up your baby's profile in under 60 seconds.
One-tap logging for sleep, feeding, mood, and care moments.
Caro surfaces patterns and suggests the next nap window.
Build a routine that works — for the whole family.
A gentle co-pilot,
always awake.
Ask Caro anything — wake windows, nap regressions, what tonight might look like. Get warm, science-backed answers in seconds.
A gentle Huckleberry & Napper
alternative.
How Caro Baby compares to other popular baby sleep tracker apps.
| Feature | Caro Baby | Huckleberry | Napper |
|---|---|---|---|
| One-tap nap & feeding tracker | ✓ | ✓ | ✓ |
| AI sleep coach (chat, in-app) | ✓ | — | — |
| Wake-window suggestions by age | ✓ | ✓ | ✓ |
| Mood & fatigue tracking | ✓ | — | — |
| Free core tracking (no paywall) | ✓ | — | — |
| Calm, ad-free design | ✓ | ✓ | ✓ |
Questions parents actually ask.
Is Caro Baby a free baby sleep tracker?+
Yes — Caro Baby is free to download on iOS and includes one-tap nap, feeding, diaper, and mood tracking out of the box.
How is Caro different from Huckleberry or Napper?+
Caro pairs gentle tracking with a built-in AI sleep coach that explains patterns and suggests the next wake window in plain language — no rigid schedules, no upsell wall on basic features.
What are wake windows?+
Wake windows are the stretches of time a baby can comfortably stay awake between sleeps. Caro tracks age-appropriate wake windows from newborn to toddler and suggests the next nap time automatically.
Does Caro replace a human sleep consultant?+
No — Caro is a gentle, science-backed companion for everyday tracking and coaching. For complex medical or sleep concerns, always consult your pediatrician or a certified sleep consultant.
We make tools for
the first 1,000 days.
Tiny Pulse Labs is a small studio of parents, designers, and engineers building gentle, beautifully crafted products for new families. Caro is our first — a sleep companion that treats the hardest hours of parenting with the care they deserve.
Tonight could be
quieter.
Download Caro Baby and let your little one's pulse guide the way.
Free to start · No ads · Privacy-first