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Finally understand
your baby’s sleep
Enter their age and the time they fell asleep. You’ll see their sleep phases hour by hour, the exact moment you can put them down without waking them, and what’s normal at that age.
- 0 – 3
- From birth to 3 years
- 9
- Detailed age ranges
- +2000
- Parents helped
The first cycle, minute by minute
The whole night, at a glance
To send to your partner, the nanny or the grandparents.
No account, no sign-up. Everything is calculated in your browser, and only anonymous analytics are collected.
The timer: when can I put them down?
Start it the second they fall asleep in your arms.
While you wait, keep them against you and try not to move. The countdown will tell you when their sleep is deep enough for the transfer.
Keep this tab open. The timer stays accurate even if the screen turns off.
How much sleep they need, age by age
The shaded band is the normal range over 24 hours. Hover to read an age range.
Hover over the curve to read an age range.
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