4-6 months

Rolling sometimes begins as a surprise

Rolling rarely arrives in a tidy, predictable way

The Millie's Team By The Millie's Team · Parenting Notes

Around week twenty-three, the first roll may suddenly happen, often when nobody is watching. Many babies seem to discover rolling almost by accident before doing it again on purpose.

What is happening

Your baby's strength, balance and coordination have been building for weeks. At some point those pieces line up, and a small shift of weight tips them all the way over. The first time can be as much a surprise to your baby as it is to you.

Is this normal

Yes. Some babies roll early and often, some roll once and then not again for weeks, and others take a while to get going. All of these patterns are normal. Rolling does not need to be reliable to count as progress.

What you may notice

What helps right now

What to expect next

Over the coming weeks, rolling usually becomes more confident, first in one direction and later in both. Once it is reliable, it can change naps and nights for a short while as your baby practises in their cot.