For babies 3-9 months

Transition Bag™ & Suit Sleeves

Grey Cotton
Zip-on sleeves Spare set Bag & Suit compatible
For babies 3-9 months

Transition Bag™ & Suit Sleeves

Grey Cotton
Zip-on sleeves Spare set Bag & Suit compatible
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£7.99
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Product details

Keep a fresh pair of Swaddle Up™ Transition Bag & Suit Sleeves on rotation so you're never caught out by laundry day. Designed for babies moving toward arms-free sleep, this spare pack ensures your little one can continue their transition journey in a clean, dry suit while the other pair is in the wash.

  • Continuous comfort: No more waiting for sleeves to dry; maintain a consistent sleep routine every night.
  • Hygienic sleep: Easily replace sleeves that have become damp from self-soothing or "sleeve chewing."
  • Easy zip-on: Features our signature zip-on design for a secure, fuss-free swap.
  • Versatile fit: These Spare Sleeves are designed to fit both the Swaddle Up™ Transition Bag and the Transition Suit. To ensure the perfect fit, only use these sleeves on products that include the word "Ideal" on the back of the sleeve zipper

*Purchase Separately. Transition Bag/Suit not included. **Once your baby shows signs of rolling, you must begin the transition from swaddled "Arms-Up" to arms-free sleep. Follow the Transition Bag/Suit "how to transition" instructions for safety.

Care Instructions
  • Wash before first use
  • Close zipper before washing
  • Warm gentle machine wash
  • Wash dark or strong colours with similar colours
  • Dark printed colours may fade or change after washing. This does not compromise the quality or comfort of our products.
  • Do not bleach, soak or rub
  • May be tumble dried on low
  • Warm iron if necessary
  • Do not iron zipper or printed logo
  • Do not dry clean
  • Wash wings/sleeves immediately after every use
Delivery & Returns
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  • FREE Express Delivery over £50 (£4.95 under)
  • All orders shipped via DPD
  • Order by 12pm for same-day despatch → Next-day delivery to UK mainland
  • Tracking sent once your order ships

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30-Day Returns

Changed your mind? Return unused items in original packaging within 30 days of purchase. Return postage at your own cost. View our full returns policy →

Product code: L164 01 001 GRY

Transition Bag™ & Suit Sleeves Cotton Grey
Add to cart
Transition Bag™ & Suit Sleeves
Grey Cotton
£7.99
"We love this product! I have used the swaddle up products for both my kids to help them feel comforted and sleep as well as possible in the range of togs for different seasons. Recently bought this one when the temperature dropped and now my baby is sleeping really well. This makes him cosy and warm without me worrying about him overheating in a thick blanket. These products are the one thing I always recommend, both my kids have slept better any nights we used swaddle up." - Rebecca K

Frequently Asked Questions

Will these replacement sleeves fit the Transition Bag or Suit I bought a few years ago?

These replacement sleeves are specifically designed to fit our 2024 collection and onwards. In 2024, we updated our zipper hardware to a smoother, more durable design. To check if your garment is compatible, look at the zipper on the shoulder. If it has the word “Ideal” on the back, these spare sleeves will fit perfectly.

Can I use these sleeves to turn a standard Swaddle Up™ into a Transition Bag?

No. These sleeves are replacement parts only and can only be attached to products that already feature zip-off shoulders (the Transition Bag or Transition Suit). Standard Swaddle Up™ garments do not have the necessary zippers to attach these sleeves.

My baby chews their sleeves while self-soothing—how many sets do I need?

Most parents find that having 2 x replacement sets (for a total of two pairs) is the "sweet spot". This allows you to have one pair on the garment, one in the wash, and a backup for those middle-of-the-night emergencies. This keeps your baby’s sleep environment fresh and dry without needing to wash the entire suit daily.

Do I need to buy a specific size of sleeves?

Yes. For safety and a secure fit, you must match the sleeve size to the size of your Transition Bag or Suit. For example, if you have a Large Transition Suit, you must select Large Spare Sleeves. Zipper lengths are precisely measured for each size (M, L, and XL) to ensure the correct ergonomic fit for your baby's development.

Can I use these sleeves on both the Transition Bag and the Transition Suit? 

Yes! These spare sleeves are cross-compatible with both the Swaddle Up™ Transition Bag and the Transition Suit, provided both items are from the 2024 "Ideal" zipper collection. This makes it easy to swap between your favorite transition styles.