Every prediction, explained
Age, today’s naps, when they last woke and their own recent rhythm — see exactly what moved the window, and how often it was right.
Free Baby sleep tracker for Android
Know the next nap.
Nuvle predicts your baby’s next sleep window from their age and their own rhythm — and shows you why.
Free nap predictions, forever · No ads · iPhone coming soon
Less guessing. More sleep.
Wake windows, nap counts and bedtimes change every few weeks. Nuvle keeps up, so you don’t have to.
Log it in one tap
Sleep, feeds and diapers on one timeline.
Calm at 3 a.m.
Dim, warm and one-handed.
Built for two parents
Free partner sync and one-tap handovers.
See what’s working
Trends and an honest accuracy score.
Nuvle Plus
Plans for the hard weeks
Day-by-day targets built around your baby’s own data, for the moments that throw everything off.
- Nap transitions: 4→3, 3→2, 2→1
- Regressions and short naps
- Early waking, travel and jet lag
Free where it matters.
The next-nap prediction is free, forever.
Free
$0
Everything you need, every day.
- Nap and bedtime predictions
- “Why this time?” and accuracy score
- Sleep, feed and diaper logging
- Night Mode, history and 7-day trends
- Sync with your partner
Nuvle Plus
$39.99 / year
14 days free, then $3.33 a month billed yearly. Or $9.99 monthly, or $79.99 once for life.
- Guided sleep plans
- Plan my day: today and tomorrow
- 30 and 90-day insights
- Pediatrician PDF report
- Nanny and grandparents
Prices in USD. Your store shows your local price.
Questions
How does Nuvle predict naps?
Nuvle starts from typical wake windows for your baby’s age, then blends in their own recent wake windows, with recent days counting more. Short or long naps and early mornings nudge the next window, and the window widens when Nuvle is less sure. Tap “Why this time?” to see exactly what went into it.
Is Nuvle free?
Yes. Nap and bedtime predictions, explanations, sleep, feed and diaper logging, Night Mode, history and syncing with one partner are free with no time limit. Nuvle Plus adds guided sleep plans, day planning, 30 and 90-day insights, a pediatrician PDF report and extra caregivers.
Do I need an account?
No. Without an account everything stays on your phone. An account is optional and only needed to back up your logs and share them with your partner.
What ages does Nuvle work for?
From newborn to about 3 years. For babies born 3 or more weeks early, Nuvle uses corrected age until 24 months.
Is Nuvle available on iPhone?
Nuvle is available on Android now. The iPhone version is coming soon.
Is Nuvle medical advice?
No. Nuvle is not a medical device. Predictions and plans are general guidance; talk to your pediatrician about any concerns about your baby’s sleep, feeding or health.
From the blog
Short, practical guides for the tricky weeks.
Wake windows
Wake windows by age: a simple guide from newborn to 2 years
How long your baby can comfortably stay awake at each age, how many naps to expect, and how to use wake windows without becoming a slave to the clock.
Nap transitions
The 3-to-2 nap transition: signs, timing and a gentle 7-day plan
When babies drop from three naps to two, the signs it’s time, and a day-by-day plan to make the switch without a week of overtired evenings.
Inside Nuvle
Why Nuvle shows a nap window, not a single time
Babies aren’t clocks. Here’s how Nuvle turns wake windows and your baby’s own rhythm into a nap window — and why we show our working.