When does a baby's sleep settle and start to get longer at night?
Applies to age: 0–12 months
In short
Some babies soon sleep through the night, while others do not for a long time. At 3–6 months, some sleep 5–8 hours or longer at night, but not all.
What is normal
All claims: international norm
- Some babies soon sleep through the night, while others do not for a long time.
Source: NHS – show the original wording (EN)
Summarized and translated by the editors, not an official translation. Verbatim quote from the source, in its original wording:
Some soon sleep through the night, while some do not for a long time.
NHS · open the source · accessed: 2026-10-12 · license [1]
- As a baby grows, the baby needs fewer feedings at night and may sleep longer.
Source: NHS – show the original wording (EN)
Summarized and translated by the editors, not an official translation. Verbatim quote from the source, in its original wording:
As your baby grows, they'll need fewer night feeds and may be able to sleep for longer.
NHS · open the source · accessed: 2026-10-12 · license [1]
- At 3–6 months, some babies may sleep 5–8 hours or longer at night, but not all.
Source: NHS – show the original wording (EN)
Summarized and translated by the editors, not an official translation. Verbatim quote from the source, in its original wording:
Some babies may sleep for 5 to 8 hours or longer at night, but not all.
NHS · open the source · accessed: 2026-10-12 · license [1]
- In some babies aged 6 months to a year, night feedings may no longer be needed, and some sleep about 15 hours a day, mostly at night.
Source: NHS – show the original wording (EN)
Summarized and translated by the editors, not an official translation. Verbatim quote from the source, in its original wording:
For some babies aged 6 months to a year, night feeds may no longer be necessary and some babies will sleep for around 15 hours, most of this at night.
NHS · open the source · accessed: 2026-10-12 · license [1]
- In the first months, newborns wake up many times at night.
Source: NHS – show the original wording (EN)
Summarized and translated by the editors, not an official translation. Verbatim quote from the source, in its original wording:
Newborn babies invariably wake up repeatedly in the night for the first few months, and disturbed nights can be very hard to cope with.
NHS · open the source · accessed: 2026-10-12 · license [1]
- Sleep patterns change in all babies.
Source: NHS – show the original wording (EN)
Summarized and translated by the editors, not an official translation. Verbatim quote from the source, in its original wording:
All babies change their sleep patterns.
NHS · open the source · accessed: 2026-10-12 · license [1]
The sources in our registry do not say when to see a doctor.
international norm “International norm” next to a section heading means its claims come from a non-Polish source, because no Polish source in our registry covers this topic. When this applies to only some of the claims, the foreign ones carry the same label next to their source.
Sources
- NHS (nhs.uk, Anglia)License: Open Government Licence v3.0. Source: NHS (nhs.uk, Anglia). Content summarized and translated by the editors; changed relative to the original. Contains public sector information licensed under the Open Government Licence v3.0. The summary is ours and is not attributed to the NHS.