Swaddling — wrapping a baby snugly in a thin blanket — is one of the oldest baby-care techniques there is. Done correctly, it can help a newborn feel secure and settle more easily. Done incorrectly, or continued too long, it can create risk. This guide covers the practical basics.
Why Muslin Works Well for Swaddling
A swaddle needs to be snug but not stifling, and muslin is well suited to the job. Its open weave breathes, so a baby wrapped in muslin is less likely to overheat than one wrapped in a dense, heavy blanket. It is also large enough in standard sizes to wrap securely while remaining thin enough to fold without bulk.
The Basic Method
Lay the blanket flat in a diamond shape and fold the top corner down a few inches.
Place the baby on their back with shoulders at the fold.
Bring one side across the body, tucking it under the baby's opposite arm.
Fold the bottom corner up, leaving room for the hips and legs to move.
Bring the remaining side across and tuck it in.
Two Rules That Matter Most
Keep it snug at the arms, loose at the legs. The wrap should be firm enough to stay in place but you should be able to slide two fingers between the blanket and the baby's chest. The legs and hips need room to bend — a tight, straight wrap is not safe for hip development.
Stop as soon as rolling begins. Pediatric guidance is consistent on this point: swaddling should be stopped as soon as a baby shows any signs of trying to roll over. Some babies begin working on rolling as early as two months, so many clinicians advise reviewing swaddling by around two months and stopping well before a baby can roll. A swaddled baby who rolls onto their stomach can end up face-down with their arms restrained, which is why the milestone — not a specific age — is the trigger.
Finally, Always Place Baby on the Back
Whatever the wrap, babies should always be placed to sleep on their backs, on a firm, flat surface, with nothing loose in the sleep space. Swaddling is a tool for comfort, not a substitute for safe sleep practice.
