Best baby sleep tracking app
The best baby sleep tracking app is the one whose timing you'll actually act on, so weigh logging speed, the next-nap window, and what each app puts on its free tier. Most apps log sleep for free; the part parents reach for — wake windows and the next-nap window — is usually paid. In ParentFlow it's the Premium Sleep Planner; Huckleberry's SweetSpot and Napper's predictions are paid too; Nara Baby tracks wake windows free but does less on predicting the next nap. Below is what each gives you free versus paid.
Short answer: The best baby sleep tracker depends on whether you want simple logging, nap predictions, or a broader parenting app. Huckleberry is sleep-first, while ParentFlow combines sleep tracking, wake windows, an adaptive sleep plan, feeding logs, and caregiver sharing in one place.
What sleep tracking actually needs to do
Logging a nap is the easy part. The reason parents open a sleep app at 6pm is to answer one question: when is the next sleep, and how long has this baby been awake. That means three things have to work together, wake windows by age, a next-nap window you can trust, and reminders that come from your own logs instead of a fixed clock.
When you compare apps, separate the logging from the timing. Almost every app here logs sleep well. The difference is whether the timing guidance, the wake window and the predicted next nap, is free or paid, and whether the schedule adjusts as your baby grows. Those two questions decide which app you will still be using in a month.
Baby sleep tracking apps compared
| App | Sleep features | Wake windows | Free tier | Platform |
|---|---|---|---|---|
| ParentFlow | Free sleep logging and reminders; a Premium Sleep Planner adds wake windows, next-nap timing, and a schedule that adapts by day and week | In the Premium Sleep Planner, adjusted from your logs | Free sleep logging, daily summary and trends; the Sleep Planner is Premium | iOS, Android, Web |
| Huckleberry | Sleep logging plus SweetSpot nap-timing predictions and a Schedule Creator; Premium adds sleep plans and chat guidance | Yes, but SweetSpot predictions need Plus or Premium (ages 2+ months) | Free tier logs sleep and gives basic reports; nap predictions are paid | iOS, Android |
| Napper | Nap and bedtime predictions, a 24-hour clock view, 30+ sleep sounds and sleep school content | Yes, central to the app, behind the subscription | 7-day trial, then subscription (about $59.99/yr); core features are paid | iOS, Android |
| Baby Daybook | Sleep logging, timeline view, Apple Watch control; Premium adds a full daily schedule with predicted naps and bedtime | Predicted windows are part of the Premium schedule | Free logging; the predictive schedule is Premium (about $4.99/mo or a one-time lifetime price) | iOS, Android |
| Nara Baby | Sleep timers for naps and night, and wake window tracking, all free | Yes, tracked and shown, free; less emphasis on predicting the next nap | Fully free, no paywall and no ads | iOS, Android |
| Glow Baby | Sleep, feeding and diaper logging with nap and feed forecasts from age wake windows and past habits; Premium adds charts and comparisons | Yes, forecasts use age wake windows on the free tier | Free logging and forecasts; Premium (about $60/yr individual) adds reports and comparisons | iOS, Android |
What to look for in a sleep tracking app
Five things separate an app you keep from one you delete after a week. Check each one against the free tier, not the marketing page.
- Wake windows by age, and whether they are free. This is the single most-used number. Some apps put it behind a subscription, so read the free tier carefully.
- A next-nap window you can act on. Logging history is only useful if the app turns it into a time. Look for a predicted window, not just a chart of past sleep.
- A plan that changes as the baby grows. Wake windows at 4 months are not wake windows at 9 months. The schedule should shift over days and weeks, not stay fixed.
- Reminders from your own logs. A nudge based on when this baby actually last slept beats a generic alarm set to the clock.
- Fast logging at 3am. One tap, a widget, or a voice command. If logging a nap takes five taps, you will stop doing it, and then the predictions stop working.
Where ParentFlow fits, and where it does not
ParentFlow is a good fit if you want free sleep logging, a daily summary, and trends in one app that also handles feeding, growth, and routines. Sleep tracking, the daily summary, and trends are free, with no paywall on the basics; the Sleep Planner — wake windows, nap timing, and a schedule that adapts by day and week — is Premium. It also logs feeds, diapers and growth in one tap, runs on widgets, Apple Watch and Live Activities, takes voice logging through Siri, and shares with one caregiver. The Sleep Planner and reminders draw on your own logs, so the more you track, the closer the timing gets.
ParentFlow runs on both iPhone and Android, as do Nara Baby, Glow Baby, Huckleberry, Napper and Baby Daybook. If you want one-on-one help from a human sleep consultant, Huckleberry Premium offers that. If you mainly want a library of sleep sounds and a sleep-school course, Napper leans that way. And if you want everything free with no prediction layer at all, Nara Baby is the simplest answer.
Reflects app features as of 2026; check each App Store listing for current details.
Review note: App features, prices, and free tiers change often. This comparison is written from public store listings and official product pages, with ParentFlow described by the same criteria as the other apps. Last checked: July 2026.
Related questions
- Is there a free baby sleep tracking app with wake windows?
- Nara Baby tracks wake windows free on iOS and Android. In ParentFlow, sleep logging, the daily summary, and trends are free, while wake windows and next-nap timing are part of the Premium Sleep Planner — as they are in Huckleberry (SweetSpot) and Napper. If you want wake windows at no cost, Nara is the simplest pick; check each free tier before subscribing.
- Does Huckleberry's nap prediction cost money?
- Yes. Huckleberry's free tier logs sleep and shows basic reports, but its SweetSpot nap-timing predictions require the Plus or Premium plan and apply to babies aged 2 months and up. Premium adds sleep plans and chat guidance. Prices change, so confirm them in the App Store.
- What is the difference between logging sleep and predicting the next nap?
- Logging records when a nap started and ended. Predicting uses your baby's age and recent logs to estimate the next wake window and nap time. Most apps log well; the gap between them is whether that prediction is free and whether it adjusts as your baby grows.
Sources & further reading
ParentFlow: one free app, newborn to age six
ParentFlow is a free baby tracker that logs feeds, sleep, diapers, pumping and growth in one tap, with your daily summary, trends, and reminders based on your own logs. Free for everyday tracking on iPhone, Android, and the web.
App Store Google Play Open Web AppThis article reflects current AAP, CDC, FDA, and other public-health guidance and is for educational purposes only. It does not constitute medical advice. ParentFlow is a wellness companion — not a substitute for your pediatrician. For any medical concern, contact your healthcare provider.