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FDA-listed
10,000+ happy parents
R 5,429.88
Real-time O2 & heart rate monitoring
Instant smart alerts sent to your phone
Soft, breathable all-night comfort
Up to 20 hours battery life
Add to Cart
Buy Now — Quick Checkout
Free Shipping
30-Day Returns
1-Year Warranty
Newborn to Toddler
Your baby grows fast — the BabyO2 Smart Sleep Sock grows right along with them. Every box includes all three graduated sock bands, so there's never a need to buy a new device as your little one gets bigger.
Size 1 — Newborn & early months
Size 2 — Growing infant
Size 3 — Toddler & beyond
A snug, comfortable fit at every stage — soft on delicate skin and gentle enough for all-night wear.
Endorsed by Pediatric Professionals
As a pediatric nurse, I recommend the BabyO2 to every new parent I meet. It gives them the confidence to rest, knowing they'll be alerted the moment something needs attention.
Dr. Amahle Ndlovu
Pediatrician, Cape Town
AS SEEN ON
PARENTS
FORBES
WIRED
10,000+ Babies
Monitored Nightly
4.8/5 from 2,300+ Parents
FDA-Listed
Medical Device
Why Parents Love It
Everything the BabyO2 Smart Sleep Sock does is designed to keep your little one safe and comfortable — while you finally get some rest.
Continuously tracks your baby's oxygen levels and pulse throughout the night, so nothing goes unnoticed while they sleep.
Get notified right on your phone the moment readings need your attention — day or night, wherever you are.
Soft, breathable, hypoallergenic fabric stays gently snug on tiny feet without irritating delicate skin.
Up to 20 hours of monitoring per charge, so it comfortably lasts through every bedtime and nap.
How It Works
Getting started with the BabyO2 Smart Sleep Sock takes just minutes — no complicated setup, no stress.
1
Gently place the soft sensor sock on your baby's foot before naptime or bedtime — it stays snug and comfortable all night.
2
Connect to the free companion app via Bluetooth to start real-time monitoring of oxygen levels and pulse in seconds.
3
Get instant alerts on your phone if oxygen or heart rate readings fall outside the safe range — so you can check on baby right away.
Loved by Families
Thousands of families sleep more soundly knowing their little one is gently monitored all night long. Here's the peace of mind they've found.
10,000+
Babies monitored nightly
4.8/5
Average rating from 2,300+ parents
98%
Would recommend to a friend
One night the app alerted me that his oxygen had dipped low. I rushed in, repositioned him, and everything was fine. I truly believe this little sock gave us a warning we'd never have caught on our own.
Naledi M.
Johannesburg
As a first-time mom I used to check on her a dozen times a night. Now I finally sleep soundly knowing the app is watching over her breathing and heart rate. It's been life-changing for our whole family.
Thandeka R.
Durban
Setup took me less than five minutes and the sock is so soft my son doesn't even notice it. Seeing his oxygen and pulse readings right on my phone gives me such comfort every single night.
Lerato K.
Cape Town
Watch The Demo
Watch how the Smart Sleep Sock gently slips onto your baby's foot and streams live oxygen and pulse readings straight to your phone.
Traditional Monitors
BabyO2
Guesswork
Real-time O2 & heart rate readings
No alerts if something's wrong
Instant smart alerts to your phone
Bulky camera setup
Soft, wearable sensor sock
Short battery life
Up to 20 hours per charge
One-size-fits-all
Comfortable, breathable, hypoallergenic fit
Shop the BabyO2
MEET OUR FOUNDER
When Thandi brought her newborn home, the joy came wrapped in a fear she couldn't shake. She spent night after night hovering over the crib, hand on her baby's chest, just to feel him breathe. The exhaustion was one thing — but the constant, gnawing what if was another.
The first time she used a wearable oxygen monitor, she finally slept through the night. That relief changed everything. She started Baby World SA to bring the BabyO2 Smart Sleep Sock to parents everywhere — so no mom or dad ever has to face that fear alone again.
— Thandi, Founder & Mom of two
Got Questions?
Everything you need to know about the BabyO2 Smart Sleep Sock. Can't find your answer? Our support team is always happy to help.
Is the BabyO2 safe for my baby?
Absolutely. The sock is made from soft, breathable, hypoallergenic fabric and uses gentle low-energy Bluetooth to communicate with your phone. It's designed specifically for little ones and rests comfortably on your baby's foot without any tight straps or discomfort.
How accurate are the oxygen and heart rate readings?
The BabyO2 uses the same pulse-oximetry technology found in medical monitors to track oxygen saturation and pulse rate in real time. Readings update continuously in the app, so you always have a clear, reliable picture of how your little one is doing.
What age range is this suitable for?
The sleep sock comes in 3 sizes, all included in every box, so you're covered from day one. Start with the smallest for your newborn and move up as they grow, using it all the way until your baby outgrows the largest size. No matter the stage, it stays snug and comfortable throughout your journey together.
How do I clean the sensor sock?
Simply remove the small sensor unit from the fabric sock, then hand-wash the sock in warm soapy water and let it air dry. Wipe the sensor gently with a soft, slightly damp cloth. Never submerge the electronic sensor in water.
Does it work with both iOS and Android?
Yes! The free BabyO2 app is available on both the Apple App Store and Google Play. It connects via Bluetooth and works with most modern smartphones and tablets, so you can monitor readings wherever you are in the home.
What's your return and warranty policy?
Every BabyO2 comes with a 30-day money-back guarantee and a 12-month warranty against defects. If you're not completely happy, simply reach out to our support team and we'll make it right, no fuss.
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