28 August 2026 · Veronica Chi
Business & Product Director · Mum of two
Baby Keeps Breaking Out of the Swaddle: What to Do
You wrap her at eight. By half past ten one arm is out, by two in the morning the muslin is a heap at her feet and she is awake and furious about it. This is one of the most common newborn complaints there is, and almost always it is a fixable problem with the wrap rather than a verdict on swaddling.
Almost always. Before you try anything below, rule out the one cause that means stopping instead of adjusting.
First: is she trying to roll?
A baby who has begun leaning hard to one side, lifting a hip off the mattress, or tipping over during play is telling you the swaddling chapter is closing. Escaping the wrap is often the first symptom parents notice, before they have consciously registered any rolling at all.
If any of that is happening, stop swaddling and move to arms-free sleep. Nothing on this page applies. If she is genuinely just a strong newborn with good technique, read on.
Check this first
Is breaking out of the swaddle dangerous?
The escape itself is not, but what it leaves behind can be. A half-undone swaddle means loose fabric in the cot, sometimes near her face, which is the exact thing safe-sleep guidance asks you to avoid. So a baby who reliably escapes has to be either re-wrapped properly or moved out of swaddling — leaving the situation as it is, night after night, is the option that is not available.
Why does she break out?
| What you see | Likely cause | The fix |
|---|---|---|
| One arm out within minutes | Arm was bent when wrapped | Straighten the arm before folding the corner over |
| Whole wrap loosens gradually | Not tucked under her body weight | Tuck each corner under her back, not just across |
| Fabric slides open | Slippery or too-small cloth | Larger square, 120cm, with a muslin weave that grips |
| Escapes then screams | Too tight, or too hot | Loosen at the hips; check the back of her neck |
| Escapes only after a feed | Wrapped over a full, unwinded tummy | Wind her first, then wrap |
| Nightly, with force | She has simply outgrown it | Move to a sleep sack |
How do you stop a baby breaking out of a swaddle?
- Use a bigger square. Most escapes are a size problem wearing a technique costume — 120cm gives you enough cloth to tuck properly, where a 70cm receives blanket does not.
- Straighten each arm fully before you fold the corner across. A bent elbow is a lever, and she will find it.
- Tuck under her body, not around it. Her own weight is what holds the wrap; fabric laid over the top and left there will always come free.
- Start the first fold at the shoulder line, not the neck. Too high and the whole wrap has slack to travel into.
- Keep the hips loose deliberately. Counterintuitive, but a baby fighting a restricted hip generates far more force than one whose legs can bend.
- Wrap her drowsy rather than furious. A protesting baby is a stiff one, and a wrap applied to a rigid body is loose the moment she softens.
- Check the temperature before blaming the technique. In a warm room, escaping is often the only way she has to cool herself down.
Should you switch to a velcro swaddle wrap?
For a determined escape artist, yes, and there is no purity test to fail here. A shaped wrap with fastening tabs holds where a folded square slips, it survives a 3am resettle by somebody who is barely awake, and it takes the technique out of the equation entirely.
It also makes the eventual transition easier: one wing left open for a few nights is a far gentler step down than trying to half-fold a muslin around one free arm.
And if you would rather stay with muslin, buy the larger size and buy more than one. Two or three in rotation means the wrap you actually like is never the one in the wash at bedtime.
When breaking out means it is time to stop
If she escapes a well-executed wrap, in a properly sized cloth, night after night, and none of the fixes hold for more than an hour — that is not a technique problem. That is a baby who is done with swaddling, whatever the calendar says, and the kind response is to believe her.
Move to a sleep sack, keep everything else about bedtime identical, and expect a scrappy week before it settles. The muslins will find other work within about a fortnight.
What comes next
Questions parents ask
Why does my baby keep breaking out of her swaddle?
Usually because an arm was bent when she was wrapped, the cloth is too small to tuck properly, or the corners were laid across her rather than tucked under her body weight.
Is it dangerous if my baby gets out of her swaddle at night?
It leaves loose fabric in the cot, which is a suffocation risk. A baby who escapes reliably needs either a wrap that holds or a move to a sleep sack.
What size swaddle stops a baby escaping?
Around 120cm square. Smaller receiving blankets rarely leave enough fabric to tuck securely under a growing baby.
Are velcro swaddles better for escape artists?
Generally yes. A shaped wrap with fastening tabs holds more reliably than a folded square and removes the technique variable at 3am.
Does breaking out mean my baby is ready to stop swaddling?
Sometimes. If a correctly sized, correctly wrapped swaddle fails every night, or she is showing any rolling attempts, stop swaddling and move to arms-free sleep.
Sources
- The Lullaby Trust — Swaddling and slings
- American Academy of Pediatrics — A Parent's Guide to Safe Sleep
This guide is general information, written to help you understand a topic and ask better questions — it is not medical advice and does not replace your own doctor, midwife or paediatrician. Anything that worries you about your baby belongs with them.