Nappy – Baby Sleep Tracker

06:52

Today's plan

One day. One line.

Naps already taken, the moment right now, the next windows and the night — as a calm timeline instead of a table.

Today's timeline in the Nappy app with sleep spot, mood, and wake cause — timeline

09:10

Wake window

When's the next tired window?

From every nap, Nappy learns your child's personal wake window and shows you when the next one is likely to arrive — a calm read-out, not an alarm.

Countdown card from the Nappy app — today

13:20

Features

Four things. Nothing more.

The next nap, always in view

A big, clear countdown shows when the next window is coming. If the day runs differently, Nappy simply keeps pace.

Start and stop with one tap

Optionally add where they fell asleep, their mood, and why they woke. Everything is optional — nothing slows you down.

History and patterns

A week-and-month overview with sleep totals, consistency, and your patterns — favorite sleep spot, wake mood, wake cause.

Two parents, one baby

history

stats

16:05

Science

Wake windows aren't a rule of thumb.

Nappy works with nine finely tuned age brackets drawn from pediatric sleep research — not a round number. Which bracket applies is for the app to decide, blended with what it actually observes in your child.

Newborn 45–60 min awake

Six months about 2½ hrs awake

Toddler 4–6 hrs awake

studies in the
database

200,000+

children
studied

156,000+

sleep sessions
analysed

Nappy is not a medical device and does not replace pediatric advice.

17:40

About your child

After ten days, Nappy knows your child — not just their age.

That's exactly what the optional details at bedtime are for. Nappy compares your real history with what's typical for the age and finds what actually works for your child — with their name, not as generic advice.

Insight card from the Nappy app — insights

What works

Naps in the crib last about 20 min longer, on average.

from 27 naps

After feeding, Emma wakes up cheerful more often.

from 31 naps

Emma's mornings are remarkably consistent — almost every day around 7:30.

from 21 mornings

Compared to average

Emma's wake windows are currently running about 25 min longer, on average, than the age-typical range.

from 41 wake windows

Emma usually gets by with 2 naps — 1 fewer than typical.

from 21 days

Emma's bedtime averages around 20:39 — later than the age-typical range.

from 21 nights

Emma is an example child; your app shows your own child's name. Insights appear only after about ten tracked days, and only when a pattern is clear enough. Until then, Nappy would rather show nothing than something made up.

19:30

Privacy

Your data belongs to you.

Nappy stores everything on your device. If you sign in with Apple, your entries are synced, encrypted, within the EU — so they survive across your devices and a device change.

Servers in Frankfurt Sync runs exclusively through an EU provider — no transfer outside the EU.

No tracking Nappy doesn't track you and doesn't sell anything on. There's no advertising SDK in the app.

Delete anytime You can fully delete your account and all cloud data directly in the app.

Read the privacy policy →

22:14

When will your baby next get tired?

One day. One line.

When's the next tired window?

Four things. Nothing more.

Wake windows aren't a rule of thumb.

After ten days, Nappy knows your child — not just their age.

Your data belongs to you.

Babies rarely sleep on schedule.
Nappy simply keeps pace.

When will your baby next get tired?

One day. One line.

When's the next tired window?

Four things. Nothing more.

Wake windows aren't a rule of thumb.

After ten days, Nappy knows your child — not just their age.

Your data belongs to you.

Babies rarely sleep on schedule.Nappy simply keeps pace.

Babies rarely sleep on schedule.
Nappy simply keeps pace.