Why sleep can become unsettled around eight months
Crawling, pulling to stand, separation anxiety and nap transitions can all disturb sleep.
Keep routines reassuring
A calm bedtime, clear routine and consistent response help many babies through this stage.
Avoid changing everything at once
Developmental changes are already a lot. Keep your approach simple and predictable.
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
How long does the 8 month regression last?
It varies, but it is often temporary when routines stay steady.
Why is my baby suddenly standing in the cot?
Motor development is a major driver at this age.
Should I reduce naps?
Only if your baby's age and nap pattern suggest they're ready. Do not drop naps simply because nights have become unsettled.
Reference sources: NHS baby sleep guidance · The Lullaby Trust safer sleep information. Last updated: 28 October 2026.