How to Swaddle a Baby with a Muslin (Step by Step)
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Short answer: to swaddle with a muslin, lay it in a diamond, fold the top corner down, place your baby with shoulders below the fold, wrap one side across and tuck, bring the bottom up, then wrap the other side — snug around the arms but loose around the hips so the legs can bend and move freely. Always follow your health authority's safe-sleep guidance, place a swaddled baby on their back, and stop swaddling as soon as your baby shows any signs of rolling.
A good muslin swaddle can settle a newborn beautifully — done the safe way. Here's the method, with the safety points that actually matter.
Why a muslin?
A large, breathable muslin is ideal for swaddling: it's lightweight and airy (which helps avoid overheating), soft on newborn skin, and big enough to wrap securely. The same square doubles as a burp cloth, pram shade and comfort blanket, which is why it's the most-used item in most nurseries.
How to swaddle, step by step
- Lay the muslin as a diamond and fold the top corner down about 15cm.
- Place your baby on their back with shoulders just below the folded edge.
- Wrap one side across the body, tucking it snugly under the opposite arm and back.
- Bring the bottom corner up, keeping it loose around the legs so the hips can bend and spread naturally.
- Wrap the other side across and tuck it under, snug around the chest but never tight on the hips.
- Check the fit: you should be able to slip a hand between the muslin and your baby's chest, and their legs should move freely.
The safety points that matter most
- Always place a swaddled baby on their back to sleep, following your health authority's safe-sleep advice.
- Snug arms, loose hips. Tight, straight-legged wrapping is linked to hip problems — the legs must be free to bend up and out.
- Don't overheat. A single breathable muslin layer; watch for signs of being too warm.
- Stop swaddling at the first signs of rolling (usually around 8 weeks or earlier for some babies). A baby who can roll must have arms free.
Frequently asked questions
Is it safe to swaddle a baby with a muslin?
Yes, when done correctly: wrap snugly around the arms but loosely around the hips so the legs can bend freely, use a single breathable layer to avoid overheating, and always place your baby on their back. Follow your health authority's safe-sleep guidance.
How do I swaddle so it doesn't affect my baby's hips?
Keep the wrap loose around the legs and hips so they can bend up and out naturally — never straighten and bind the legs tightly. Snug around the arms and chest is fine; tight around the hips is not.
When should I stop swaddling my baby?
Stop as soon as your baby shows any signs of trying to roll, often around 8 weeks but sometimes earlier. Once a baby can roll, their arms need to be free, so it's time to transition out of the swaddle.
Written by the founder of Baby Zaza — a parent of one, and the person who tests everything in the shop. This covers technique and comfort, not medical advice — always follow your health authority's safe-sleep guidance. Browse breathable muslins in Nursery Glow.