Quick answer: the TICKS checklist — Tight, In view at all times, Close enough to kiss, Keep chin off chest, Supported back — is the safety standard recommended by sling and carrier safety organizations for checking any baby carrier or sling fit, every single time you use it. Below is what each part means in practice, plus the broader safety guidance from pediatric health authorities that every new parent should know before babywearing.
Why Babywearing Safety Deserves Real Attention
Slings and carriers are genuinely useful — they free up your hands, support extended breastfeeding when used appropriately, and many parents find them invaluable for everyday life. But the American Academy of Pediatrics (AAP) notes that an estimated 14,000 young children went to the emergency room between 2011 and 2020 after falling out of carriers or being injured when a caregiver wearing one fell. Most injuries were to the head. The risk isn't the equipment itself — it's almost always fit and use.
The good news: a few consistent habits eliminate nearly all of that risk.
The T.I.C.K.S. Checklist, Explained
T.I.C.K.S. is used by safety organizations including the UK Sling Consortium and the Royal Society for the Prevention of Accidents (RoSPA) as the standard fit-check for any sling or carrier, every time you use one.
T — Tight
The carrier should be snug enough that your baby is held firmly against your body, with no loose or bunched fabric. A loose carrier lets a baby slump into a curled position, which can restrict breathing.
I — In View at All Times
You should be able to look down and see your baby's face without having to move fabric out of the way.
C — Close Enough to Kiss
Your baby's head should sit high enough that you could kiss the top of it without bending down. This positioning keeps them close enough that you'll notice changes in breathing or color immediately.
K — Keep Chin Off Chest
This is one of the most important checks. If a baby's chin drops to their chest, their airway can narrow — Stanford Medicine Children's Health notes this is the single biggest suffocation risk with slings, since babies don't yet have the neck strength to lift their head if their breathing is restricted this way.
S — Supported Back
A baby's back should be naturally supported in a slight curve, with their tummy and chest against you so you can monitor their breathing easily.
Additional Safety Guidance Every Parent Should Know
Watch for the "C-Shape" Curl
According to HealthyChildren.org (AAP), some sling positions can curl a baby's body into a C-shape, which significantly increases the risk of breathing problems. Your baby's neck should stay straight, with their chin clear of their chest.
Never "Womb-Like" or Fully Enclosed Positions
Raising Children Network specifically warns against products described as "womb-like" or "cocoon-like," since these can cover a baby's face or force them into a fetal position — both of which increase suffocation and overheating risk.
Premature or Medically Fragile Babies Need Extra Caution
The AAP advises that infants born prematurely or with respiratory issues shouldn't be placed in upright positioning devices like backpacks, since positioning can make breathing harder for them. If your baby was premature or has any respiratory concerns, talk to your pediatrician before babywearing.
Avoid Risky Activities While Wearing Your Baby
Stanford Medicine Children's Health advises against jogging, cycling, cooking near hot surfaces, or any activity that could put a worn baby at risk — essentially, don't do anything with your baby in a carrier that you wouldn't do holding them directly in your arms. Never wear your baby while driving, and never in a car — babies need an approved car seat for that.
Hip Positioning Matters Too
Raising Children Network notes that a baby's hips should be spread with knees apart and thighs supported in the carrier, rather than pressed together — carrying with hips together inside a sling can increase the risk of hip dysplasia over time.
Bending and Lifting
Always bend at your knees rather than your waist while wearing your baby, and hold onto something stable if possible. Bending from the waist increases the chance your baby could tip forward out of the carrier.
Check Your Carrier Regularly
Examine straps, buckles, and fabric for wear or damage before each use, and make sure you can adjust everything firmly with one hand.
Frequently Asked Questions
What age is safe to start babywearing a newborn?
Many newborns can be safely worn from day one in a carrier designed for their size, provided the TICKS checklist is followed — particularly keeping the chin off the chest and the baby high enough to kiss. If you're unsure whether a specific carrier suits a very young or small baby, a fit check with a certified babywearing educator can help.
Can I breastfeed while my baby is in a sling or carrier?
Many parents do breastfeed in a sling, typically by loosening the carrier slightly so the baby sits at breast height. The same airway precautions apply throughout — always reposition your baby upright after feeding rather than leaving them in a feeding position to sleep.
Is it safe for my baby to sleep while being worn?
Several safety organizations advise against intentionally allowing a baby to sleep in a carrier, since a sleeping baby's head can fall forward and block their airway. If your baby does fall asleep while being worn, reposition them so their chin stays off their chest and their airway remains clear, and move them to a safe, flat sleep surface as soon as practical.
How do I know if a carrier fits my baby correctly?
Beyond the TICKS checklist, your baby should be able to move their head, arms, and legs, see out of the carrier, and the fabric shouldn't cut into their face. If anything feels loose, unbalanced, or restrictive, readjust before continuing.
Are all baby carriers and slings held to the same safety standard?
Standards vary by country and product type. In some regions, you can check whether a carrier meets recognized safety specifications, such as ASTM standards for sling and soft carriers in the US. When in doubt, check the manufacturer's specific age, weight, and use guidelines for your exact product.
The Bottom Line
Babywearing can be a genuinely helpful part of daily life with a baby, but it depends entirely on correct fit and sensible precautions — not the specific brand or style you choose. Run through the TICKS checklist every time you put your baby in a carrier, avoid risky activities while wearing them, and check on them often. If you're exploring on-the-go baby gear more broadly, take a look at our On The Go collection and our guide on warming bottles safely while out and about.
This article is for general informational purposes and is not a substitute for guidance from your pediatrician or a certified babywearing educator, particularly for premature infants or babies with specific medical needs.