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Description
cybex rotating car seat CYBEX Sirona T i-Size 360° Rotating Toddler Car SeatPlease note: car seat base is sold seperately Enjoy the ultimate travel experience with the Sirona T i Size providing unparalleled comfort and safety in both rear and forward facing positions, making every journey blissful for you and your little one. The 360 rotation allows for effortless on and off boarding of your child. You can easily choose between extended rear facing or comfortable forward facing positions, thanks to the smooth one hand
Please note: car seat base is sold seperately
Enjoy the ultimate travel experience with the Sirona T i-Size - providing unparalleled comfort and safety in both rear and forward-facing positions, making every journey blissful for you and your little one. The 360° rotation allows for effortless on and off-boarding of your child. You can easily choose between extended rear-facing or comfortable forward-facing positions, thanks to the smooth one-hand rotation mechanism. Additionally, the one-hand adjustment allows for easy recline while keeping your other hand free. With integrated Linear Side-impact Protection and intuitive ISOFIX, you will have a worry-free ride. Get ready to enjoy each journey with your child and the comfortable and safe Sirona T i-Size.
Product Features
- UP TO 50% HIGHER SAFETY LEVELS - The Sirona T i-Size provides superior protection in both travelling directions in the case of an accident. When in the rear-facing position it reduces the risk of an injury to the child’s neck and head, resulting in 50% higher safety levels*. In the case of an accident, the child is pushed towards the seat shell, where forces get distributed over the entire surface therefore reducing the impact. Legally a child must stay rear-facing until at least 15 months and 76 cm in height but we recommend using it for longer, up to four years if possible. The Sirona T i-Size’s versatility allows for forward-facing positioning once the child has grown, offering freedom of choice that suits you and your child.
- ALL-ROUND AIR VENTILATION SYSTEM - COMFORT FABRIC - The Sirona T i-Size breathable materials keep your little one cool.
- 360° ROTATION - EFFORTLESS ON & OFF BOARDING - With the Sirona T i-Size, you can effortlessly on and off-board your child, thanks to its 360° rotation that smoothly rotates towards the car door. This feature minimizes any potential strain on your back during the boarding process. Legally a child must stay rear-facing until at least 15 months and 76 cm but we recommend using it for longer, up to four years if possible. Once your child has grown, you can easily choose between the rear or forward-facing position. It’s so simple, using just one hand, the seat can be smoothly rotated and reclined, ensuring that even the youngest passenger is comfortably boarded.
- FROM BIRTH TO APPROX. 4 YEARS - Thanks to its height-adjustable headrest, the safety of the Sirona T i-Size evolves with your child, accommodating their rapid growth. With its 12 different positions, the car seat adapts to your child’s size during the first four years, providing steady protection throughout this time. When adjusting the headrest height the harness adjusts automatically to ensure a comfortable fit.
- 25% MORE SIDE IMPACT PROTECTION - The Sirona T i-Size is equipped with the proven Linear Side-impact Protection System (L.S.P.) which enhances safety in the event of an accident. Activate the L.S.P on the side of the car seat nearest the door, together with the energy-absorbing shell of the seat, the extended side protection reduces the initial impact forces by up to 25%**. If needed, the L.S.P. System can be easily stored away in the case of limited space in the car.
- INTUTITIVE ISOFIX BASE T - The ISOFIX Base T serves as a secure base for the Sirona T i-Size seat unit. It is equipped with ISOFIX and a load leg for easy and secure installation. The ISOFIX release buttons are user-friendly and intuitive, visual indicators confirm the correct setup on both the ISOFIX buttons and Load Leg. With these features, setting up the Sirona T i-Size is as easy as it gets, reassuring parents and providing a safe and comfortable ride.
- COMFORTABLE SLEEPING POSITION - The five recline positions of Sirona T i-Size can be easily adjusted with just one hand, freeing up your other hand for different tasks. This feature works in both rear and forward-facing positions, providing additional comfort for your sleeping child while travelling.
- HARNESS MAGNETICS - Small magnets located on either side of the Sirona T i-Size, allow you to attach the metal parts of the harness, keeping the straps out of the way for a simpler the onboarding.
- NEWBORN INLAY - SUPPORT FOR SMALLER BABIES - The Sirona T i-Size includes a removable newborn inlay which provides a near-flat lying position, allowing for the use of the car seat from birth in the rear-facing position. The inlay helps keep the baby’s head in the most ergonomic position, especially while sleeping, to avoid breathing complications. To accommodate your baby as it grows, the newborn inlay should be removed once your child is taller than 60cm.
- COMPATIBILITY - The Sirona T i-Size is compatible with the CYBEX Base T and Base Z2.
*Compared to the same seat forward-facing in a frontal crash. Result of internal testing using 2022 ADAC frontal crash test criteria. 2 With Plus Line mesh fabrics.
**Compared to the same seat without L.S.P. in a side-impact test according to ADAC criteria.
Age Suitability: Birth to approx. 4 years, Max child weight - 18kg, Max child height - 105cm
Assembly: Fully Assembled
Composition: Polyester, Metal, Plastic
Care & Maintenance: Wash fabrics at 30° and line dry - fit fabrics back onto car seat while damp
Dimensions: 71.5 cm / 43 cm / 68 cm
Weight: 15kg
- Up to 50% higher safety levels
- All-round air ventilation system - comfort fabric
- 360° rotation - effortless on & off boarding
Please note: car seat base is sold seperately
Baby & Toddler > Baby Transport > Baby & Toddler Car SeatsShipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 1698 reviews
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Product Reviews
★★★★★ 4
Helpful Idea for Puppies, Even Though Mine Were Not Interested
Pattern Name: Heartbeat Sheep Grey
This heartbeat puppy toy is a really thoughtful concept for helping puppies feel comforted during crate training and sleep, especially for very young puppies adjusting to a new environment. The heartbeat feature and soft plush design are clearly meant to create a calming effect and ease anxiety during transitions. The toy itself feels soft and well made, and I can absolutely see why many puppies respond well to it.
In our case, my puppies personally were not very interested in it, but I honestly feel that was more about their individual personalities than the product itself. Because the concept is so good and many dogs may benefit from it, I still think it is worth trying, especially if introduced very early during puppy training and adjustment periods.
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Did they add pheremones to this??
Pattern Name: Heartbeat Sheep Grey
So when my puppy first came home to me I bought this to try to help him keep calm through the night. He wasn't able to sleep through the night, but he did sleep more than I had expected. The next couple of nights he was able to sleep through the night completely (but liked to wake up at 5 am...). Fast forward to a month later, and I no longer turn the heart on all the time (because I forget). But I did buy a re-chargeable heart because having to keep buying batteries is a pet peeve for me. He still loves to sleep with it as it's another snuggle spot that helps keep him warm (short haired mini dachshund, so not much fur to keep himself warm) in the kennel. During the day though, he loves to drag this thing out of the kennel and "wrestle" with it. He shakes it a lot like all dogs like to do to "kill" it, and he's chewed the tail and nose worn. But the reason I say it has pheremones is that at 10 weeks old (which was younger than my last dogs' puberty age), he's humping it like there's no tomorrow. If I need to get his attention, or keep him out of a certain area, all I need to do is bring this out of kennel, and he's off humping the stuffing out of it. His brother (who belongs to my mother and is from the same litter), does the same thing. So now I have to wonder if they added some pheremones to it so that it's really "lovable". It was actually pretty hilarious because I was face-timing my mother showing her my dog with this anxiety toy, and he decided to perform his first humping act on air. So I'm not sure I can say it did it's main job to calm anxiety, but it did act as companion (in more ways than one) to my dog. My dog is almost 4 months old now and this toy is still going strong... well, the neck could use a sew, and the tail is on it's last leg, but he loves his girlfriend just the way she is.
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Reviewed in the United States on August 26, 2021
★★★★★ 3
Heartbeat stops working after a few seconds
Pattern Name: Heartbeat Sheep Grey
It's a really cute toy. The heart beats only for a few seconds then stops. I thought about exchanging it, but reading the reviews it looks like it is an issue with the mechanism itself. I found a pack of 2 replacement hearts from another company and so far it seems to be working.
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Reviewed in the United States on March 30, 2026
★★★★★ 5
Anxiety Relief for Elderly Dog
Pattern Name: Heartbeat Sheep Grey, Pattern Name: Heartbeat Sheep Grey
My son and daughter-in-law's 13 year old Chihuahua has been suffering from separation anxiety, and just general anxiety during the covid19 lockdown. While she's in dental school, he's been living with us full time, and she was living at school during the week and with us on weekends. But with campus closed down, there's full-time school anxiety from doggie Mom, and going to work in a plague anxiety from doggie Dad. And nobody has much time for poor stressed out doggie, who barks and whines and is generally unpleasant. The only thing that seems to calm him down is to hold him. All. Day. Long. None of us has time.
I decided to see if what works for puppies might work for an old man dog too. Guess what, it does! I started by holding the dog and the lamb on my lap for an evening while watching TV. The next morning I put the lamb in a bed next to my computer while I worked, and he climbed into the bed himself. He never would have done that before! You can't see the lamb in the picture, it's tucked under the canopy. The heartbeat is very relaxing- you do hear it, but it's more like you feel it than hear it, really. I have to admit that the first night when I was holding him, the heartbeat put me to sleep too. When my daughter-in-law came down for lunch, she took dog and lamb back up with her, and he slept with the lamb all afternoon and let her study without interruption.
I don't know how long the batteries will last, or how hard they will be to change, but so far this has been a real comfort to an anxious old man dog.
ETA- I've ordered batteries (40 for $6.99), and I may order another lamb for upstairs so we don't have to remember whether it's on Mom & Dad's or Grandma's floor. He's a much happier dog.
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Reviewed in the United States on June 29, 2020
★★★★★ 5
Puppy
Pattern Name: Heartbeat Sheep Grey
Simply the best! These hold up and are a puppy favorite!
They did change the heartbeat sound and it is a bit much for the newborn puppies.
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Reviewed in the United States on December 13, 2025