What is typical at 3 months
Sleep is still immature, but many babies begin showing longer night stretches and a slightly more predictable rhythm.
What helps most
Keep wake windows reasonable, avoid letting every bedtime drift too late and watch how feeding and settling interact.
What can still be difficult
Catnaps, evening fussiness and night waking are all common at this age.
Important: every baby's sleep is different. Avoid one-size-fits-all promises, and always put feeding, growth and safer sleep first.
Safer sleep reminder. For babies, use a firm, flat sleep surface and follow the latest safer sleep advice from the NHS and The Lullaby Trust.
What's affecting your baby's sleep?
The Petit Nuage Sleep quiz considers your baby's age, naps, night waking and how they settle, helping you work out what to focus on first.
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Frequently asked questions
Can a 3 month old sleep through the night?
Some can do longer stretches, but many still wake for feeds.
How many naps are normal?
It varies, but several naps across the day are still very common.
Should I be doing sleep training?
At this age, gentle timing and routine are usually the main priorities.
Reference sources: NHS baby sleep guidance · The Lullaby Trust safer sleep information. Last updated: 28 October 2026.