To learn how to swaddle a baby, fold one corner of a blanket, position your baby with the shoulders just below the fold, and bring each side across the body. Keep the wrap secure at the chest while leaving room for the hips and legs to bend and move. [1][2] You may also find this useful: How Often to Bathe a Newborn: A Gentle Routine.
A comfortable swaddle should support your baby without holding their lower body still. As you wrap, aim for a calm, secure fit rather than pulling the fabric tight; your baby’s legs should be able to bend and move. [1]
The basic sequence is simple: make the shoulder fold, place your baby just below it, and bring one side and then the other across the body. [2] You’ll find the detailed steps and fit checks below, so you can adjust the blanket without restricting your baby’s hips.
Swaddling is also a short-term technique. Pay attention as your baby’s movement develops, and be ready to stop when they begin showing signs of trying to roll. [1] The sections that follow explain how to wrap and check the fit, plus what to watch for as your baby grows.
What to prepare before you swaddle
Before you swaddle, set up a flat, square blanket on a safe, flat surface and check that you can keep your baby’s face clear and chest comfortable. A little preparation makes it easier to handle the blanket smoothly and avoid pulling it too tight.
Set up the blanket and surface
Choose a large square blanket and spread it flat on a safe, flat surface. A changing table or another stable surface can work if you stay beside your baby and keep a hand close; avoid preparing the wrap on a soft, uneven spot where the blanket can bunch up.
Fold one corner down to make room around your baby’s shoulders and head. For example, if the blanket is diamond-shaped, bring the top corner toward the center by about a hand’s length, then smooth the fabric so there are no bulky folds where your baby’s head will rest. [2]
Keep the face clear and the wrap comfortable
As you prepare the blanket, plan to keep all fabric below your baby’s face. Make sure the wrap will not hold the hips and legs in a straight, fixed position; your baby needs room for the hips to move. [1]
Before you finish, check the chest area rather than pulling the fabric as tight as possible. You should be able to slide two or three fingers between your baby’s chest and the swaddle; if you cannot, ease the fabric so it is less tight. [1]
Take a moment to smooth the blanket and check that the space around the shoulders and head is clear before you begin. If the fabric keeps bunching or you cannot keep it away from your baby’s face, reset the blanket on the flat surface instead of trying to make a rushed wrap work.
How to swaddle your baby step by step
Lay your baby on their back, with their shoulders just below the folded edge of the blanket. Keep their head and neck above the fold so the fabric sits around the shoulders rather than near the face. [2]
Bring one side of the blanket across your baby’s body. Tuck the edge beneath their back to help hold it in place, but do not pull it around the hips so tightly that their legs cannot move. [1][3]
Fold the bottom of the blanket up over your baby’s feet and toward their chest. Leave enough space for their legs to bend and spread naturally instead of pressing them straight together. [1]
Bring the remaining side across your baby and tuck it under their back so the wrap stays in place. Keep the top edge below the face; for example, check that your baby can turn their head without fabric shifting over it. [2]
Take your time with each fold, especially if your baby is wiggly. If the blanket slips while you are wrapping, pause and smooth it out before continuing rather than adding a tight extra layer. Use the finished wrap to keep the fabric orderly, not to hold your baby’s legs still.
Check the fit before putting your baby down
Before putting your baby down, check that the swaddle is secure at the chest, allows free movement at the hips and legs, and stays clear of the face. A quick fit check can help you catch a wrap that has shifted or feels too tight.
Check the chest
Slide two or three fingers between your baby’s chest and the swaddle. They should fit without forcing them in; if you cannot slip them through comfortably, loosen the wrap before settling your baby. [1]
Then look at how the blanket sits as your baby rests. The chest area should stay in place without pressing tightly against the body. If the fabric is pulling or bunching, adjust the wrap rather than leaving it uncomfortable.
Check the hips and legs
Make sure your baby can bend and move their legs freely. [1] For example, watch for the knees lifting or the legs shifting instead of being held straight by the fabric. If the lower wrap stops that movement, loosen or reposition it.
A swaddle can look neat while still restricting movement, so check how your baby’s legs actually move—not only how the blanket looks. Leave enough room for the hips and legs to change position comfortably.
Check the face and blanket
Look at the blanket’s edge and any loose fabric before you place your baby down. Keep the fabric below the face, and make sure no loose section can shift over the nose or mouth. If an edge is slipping upward or coming untucked, secure the wrap again before putting your baby down.
As a final check, look at the chest, legs, and blanket edge together. Make any needed adjustment while your baby is still on the safe, flat surface where you wrapped them.
When should you stop swaddling?
What signs should you watch for?
Notice whether your baby is beginning to twist or turn their body during everyday moments, such as while lying down or moving their arms and legs.
A new movement can be easy to miss when you are tired or caring for your baby in short bursts. Check in during ordinary routines, such as dressing your baby or getting them ready for sleep, and pay attention to changes in how they move. You do not need to predict the exact day a new skill will appear; respond when you notice your baby trying to roll.
What to do when you notice rolling attempts
If you are unsure whether a new movement counts as an attempt, choose an approach that does not involve swaddling and ask your pediatrician for guidance.
For example, if your baby starts turning their body to one side during a diaper change, take that change seriously rather than relying on their age or waiting for a full roll. Keeping your attention on your baby’s changing movement gives you a practical cue for when to make the switch, without treating a calendar age as the deciding factor.
You may notice a new movement one day and see it more clearly later. Keep watching, and make the change as soon as you recognize signs of an attempt to roll; you do not need to wait for a complete roll or for a particular birthday.
Swaddling mistakes to avoid
A safe swaddle should not squeeze your baby’s chest, pin the legs straight, or leave loose fabric near the face. Small adjustments help you avoid these common mistakes while keeping the wrap comfortable.
Avoid a tight chest wrap
Do not pull the blanket so tightly around your baby’s chest that it restricts breathing or comfortable movement. The wrap should feel secure, not constricting; you should be able to fit two or three fingers between the chest and the swaddle. [1]
For example, if the blanket pulls taut when your baby takes a breath or makes it hard for them to move comfortably, loosen and retuck it. Check the fit again after settling your baby, since a tuck that seemed comfortable at first may feel too restrictive once the baby shifts. For more detail, see Baby Milestones: What to Expect in the First Year.
Leave room for the legs and hips
Avoid wrapping your baby’s legs straight down or holding them tightly together. Your baby needs room to bend and move their hips; check that the blanket is not too tight around that area. [1]
If the lower part of the swaddle looks stretched across the legs, loosen it rather than pulling the fabric snug. The goal is a wrap that stays in place without forcing your baby’s legs into a fixed position.
Keep loose fabric away from the face
Do not leave a loose blanket corner where it could shift toward your baby’s face. Before you finish, look around the head and shoulders and tuck away any fabric that is hanging free.
If a corner slips loose while you are wrapping, pause and secure it before putting your baby down. Avoid covering the face with the blanket, and redo the wrap if fabric will not stay safely in place.
Keep the wrap secure and leave room to move
The two fit checks to remember are a secure chest wrap and free movement at the hips and legs. As your baby grows, watch for signs of trying to roll; stop swaddling when those signs appear.
A quick fit check
Before you settle your baby, pause and check how the wrap feels around the chest. It should stay in place without feeling restrictive; the blanket should allow movement rather than pinning the hips. You can use the two- or three-finger check at the chest as a practical reminder. [1]
Then look at your baby’s lower body. The hips and legs should be able to move, rather than being held straight or pressed together. For example, your baby should be able to bend their legs and shift them inside the wrap. [1]
Watch for changing movement
Keep an eye on your baby’s movement over time, especially any signs that they are trying to roll. When you notice those signs, stop swaddling rather than waiting for a particular age. The key next step is to check the fit each time you swaddle and stop as soon as rolling attempts begin.