Sleepabee
Guide
By age
0–3 months
4–6 months
7–9 months
10–12 months
1–2 years
By topic
Wake windows
Naps
Night sleep
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Night wakings at four months
Sleep architecture changes around 16 weeks, and settled nights often come undone.
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How it works
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How it works
The science
FAQ
EN
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0–3 months
1 article
By age
0–3 months
4–6 months
7–9 months
10–12 months
1–2 years
By topic
Wake windows
2 articles
Naps
1 article
Night sleep
1 article
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4 min read
Wake windows, explained
How long your baby can comfortably stay awake, and why it changes every few weeks.