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Sleep regression · United Kingdom

8 month sleep regression: causes, timing and practical tips

Around eight months, many babies are suddenly busy with movement, new awareness and stronger attachment. Sleep can wobble for a while.

Key takeawayHow to navigate the eight-month sleep regression without panic.
8 month sleep regressionseparation anxietynight wakings

Why eight months can be messy

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: baby sleep varies enormously. Avoid one-size-fits-all promises, and always prioritise feeding, growth and safe sleep advice.
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.

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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 age and nap patterns suggest it. Do not drop naps just because nights are messy.

Reference sources: NHS baby sleep guidance · The Lullaby Trust safer sleep information. Last updated: 24 September 2026.