SwaddleDesigns Transitional Swaddle Sack Medium (Heathered Oatmeal) product image (primary)
Top-down studio photo of an infant wearing a beige zip-front wearable sleep sack with long sleeves and a rounded bottom, lying on a white background.

Swaddle Designs

SwaddleDesigns Transitional Swaddle Sack Medium (Heathered Oatmeal)

5/5 (120)
$8.79$17.60-50%
Out of Stock

The SwaddleDesigns Transitional Swaddle Sack is a wearable blanket designed to help babies transition from traditional swaddling. It features half-length sleeves with foldover mitten cuffs that can be worn open or closed, allowing partial suppression of the startle reflex while enabling arm movement for safe rolling. Made from soft, breathable 100% cotton (0.7 TOG) with a two-way zipper, it supports hip-healthy positioning and easy diaper changes. Suitable for babies who prefer arms-up sleep or are beginning to roll, typically around 3-4 months. Available in medium size; note that some parents report sizing runs snug, so consider measuring your baby before ordering.

GTIN
811964028180
MPN
SWADDLEDESIGNS-811964028180-GENTLYUSED

Specifications

Material
100% cotton knit
Gender
unisex
Age Group
infant
Condition
used

Image Analysis

4 images
SwaddleDesigns Transitional Swaddle Sack Medium (Heathered Oatmeal) product image (primary)
01high

Top-down studio photo of an infant wearing a beige zip-front wearable sleep sack with long sleeves and a rounded bottom, lying on a white background.

infant lying on backbeige zip-front wearable sleep sackcenter front zipperrounded bottom sack shapelong sleevesfold-over mitten cuffs with small dot printcrew necklinevisible zipper pull tabsoft knit fabric textureheather beige colorwhite studio backgroundsoft diffuse lightingstudio shot, top-down view
SwaddleDesigns Transitional Swaddle Sack Medium (Heathered Oatmeal) product image 2
02high

Studio product image showing a baby sleeping on its back inside a beige transitional swaddle sack with a center zipper, half-length sleeves with foldover mitten cuffs, and a rounded foot area; surrounding feature callouts explain design elements.

OCR: The Transitional Swaddle Sack. Better Sleep and Safer Sleep. Easy to Use! Arms Up Design Babies who self soothe by sucking on hands are calmer and sleep better. Little Sleeves With a Big Purpose 1/2 length sleeves with mitten cuffs closed provide partial suppression of Moro (startle) reflex so baby sleeps better. Use of Arms If baby rolls over, baby can use arms to lift upper body and reposition head for safer sleep. Foldover Mitten Cuffs Open so baby can suck on hand to self soothe or close if concerned about facial scratches. Snug Fit Helps baby feel safe and secure with moderate suppression of the Moro (startle) reflex so baby sleeps better. Hip Healthy Round sack design allows for leg support & range of motion for proper hip development. The ideal bridge between snug swaddle to roomier sleeping sack Available in size 0-3mo, 3-6mo and 6-9mo
infant sleeping on backbeige swaddle sackcenter front zipperfoldover mitten cuffshalf-length sleevesrounded sack footbeige knit texturepink guide arrowsproduct feature text blockswhite studio backgroundSwaddle Designs logo with scalloped green squarelarge heading text 'The Transitional Swaddle Sack'subheading text banner 'Better Sleep and Safer Sleep. Easy to Use!'
SwaddleDesigns Transitional Swaddle Sack Medium (Heathered Oatmeal) product image 3
03high

Three product photos showing a baby in a beige transitional swaddle sack with front zipper and foldover mitten cuffs, demonstrating three cuff configurations on a white studio background with logo and explanatory text.

OCR: Transitional Swaddle Sack. The Easiest Way to Transition Baby from Swaddling. Designed by a Nurse. Unique Arms Up Half-Length Sleeves with Foldover Mitten Cuffs for Easy Swaddle Transition. Step 1 Both Cuffs Closed Partial Suppression of Startle reflex. Step 2 One Cuff Open Baby can self-soothe by sucking on hand. Step 3 Both Cuffs Open No Suppression of Startle reflex. Hip Healthy International Hip Dysplasia. Parents Picks Awards Winner. Served Over 1 Million Families. Mom's Choice Awards. PATENTED. US Patent D883,613. US Patent 11,812,795.
infant in swaddle sackbeige knit fabricfront zipperhalf-length sleevesfoldover mitten cuffsarms-up sleeping positionthree step demonstration imagesstudio white backgroundlogo with scalloped green squaresmall circular badge iconsthin gray sans-serif headline textdotted pink divider linecallout boxes with short instructions
SwaddleDesigns Transitional Swaddle Sack Medium (Heathered Oatmeal) product image 4
04high

Studio photo of a smiling baby lying on stomach inside a light gray swaddle with half-length sleeves against a plain white background and explanatory text at left.

OCR: If baby rolls over. the half-length sleeves allow enough mobility for baby to push up and reposition head
infant baby on stomachheather light gray swaddle garmenthalf-length sleevesinner white fabric with small gray dotssmiling open mouth expressionlight brown short hairpale skin tone with rosy cheeksplain white backgroundsoft diffuse studio lightingleft-side product text overlay in dark gray sans-serif

Brand PDP Lookup

Brand
SwaddleDesigns

Transitional Swaddle Sack - Arms Up 1/2-Length Sleeves & Mitten Cuffs

Also Seen Here

1 retailers
  • walmart.com
    high

    SwaddleDesigns Transitional Swaddle Sack, Arms Up Swaddle with Half-Length Sleeves & Mitten Cuffs, Easy Transition Swaddle Sleep Sack, Medium, 3-6 Months, 14-21 lb, Heathered Oatmeal

    SwaddleDesigns

    View listing →

Documents & Data

Customer Reviews

120 total
5

120 reviews · out of 5

The products were very good

SUSAN PASSMORE

The products were very good. More than I’d expected them to be. The color of the diaper bag is beautiful and I know my daughter in love will be happy with it.

Reddit Insights

6 threads · r/newborns, r/NewParents, r/beyondthebump

Reddit parents generally praise the SwaddleDesigns Transitional Swaddle Sack as an effective and safe solution for transitioning babies out of traditional swaddles, particularly for strong startle reflexes.

positive sentiment95% match

Most comments are positive, highlighting safety, ease of use, and improved sleep. Few concerns about sizing or zipper issues.

Themes

Transition effectivenesspositive
Safety and designpositive
Sizing and fitmixed
Fabric and comfortpositive

Use Cases

  • Transitioning from traditional swaddle when baby starts rolling
  • Reducing startle reflex awakenings
  • Allowing self-soothing with accessible hands

Watch Out For

mediumSizing can be tricky; do not size up, and ensure snug midsection to prevent bunching.
lowSome babies may take a week to adjust from a full swaddle; expect a short transition period.
mediumAvoid using thick fleece pajamas underneath to prevent overheating.

Community Q&A

When should I start using the Transitional Swaddle Sack?
When baby shows signs of rolling over or breaking out of a traditional swaddle, typically around 3-4 months.
Is it safe for babies who roll?
Yes, the half-length sleeves allow baby to push up and reposition if they roll onto their tummy.
How do I use the mitten cuffs?
Start with both cuffs closed for partial startle suppression, then open one or both for self-soothing as baby adjusts.

Compared To

vs Zipadee-Zip

Often compared to Zipadee-Zip; parents find SwaddleDesigns easier for transition without full arm freedom.

vs Halo Easy Transition Sleepsack

Some prefer SwaddleDesigns for the flexible sleeve options and better Moro reflex suppression.

Source Threads

  • Personal experience with the Transitional Swaddle Sack for a 3.5 month old

    We just started using the SwaddleDesigns Transitional Swaddle Sack in heathered oatmeal for our 3.5 month old who started rolling. It’s been a lifesaver! The half-sleeves with the mitten cuffs closed really help with her startle reflex, and I feel safer knowing she can push up if she rolls onto her tummy. She sleeps better than in the traditional swaddle already.

    View thread →

  • Comparison of transition swaddles, including SwaddleDesigns

    We tried a few transition swaddles for our 4-month-old. The SwaddleDesigns Transitional Swaddle Sack (medium, heathered oatmeal was the color we got) worked the best. The Zipadee-Zip was too much like a flying squirrel for her, and the Halo Easy Transition sack didn't suppress the startle enough. With SwaddleDesigns, the open/closed cuffs gave us flexibility. We started with both closed and then opened one hand for self-soothing. She slept through the night in it!

    View thread →

  • Recommendation for a strong startle reflex

    My 3-month-old has a strong Moro reflex and started rolling. The SwaddleDesigns sack (we got heathered oatmeal medium) was the best! The half-sleeves keep his arms contained enough to prevent startles but still let him push up. Way better than going cold turkey to a sleep sack.

    View thread →

  • Transition swaddle for a thumb-sucker

    We have the SwaddleDesigns Transitional Swaddle Sack in oatmeal. It's great because you can open the cuffs for thumb-sucking. My son loves sucking his fingers, so we opened one cuff after a few nights. He sleeps so much better now. Only issue is it runs a bit small; we sized up to medium at 14 lbs and it's snug.

    View thread →

  • Safety discussion on transitional swaddles

    I was worried about safety with transitional swaddles. After researching, the SwaddleDesigns one seemed safest because of the arm mobility. We got the heathered oatmeal medium for our 4-month-old. She can push up when she rolls, which gives me peace of mind. The hip-healthy design is a bonus.

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  • Success with SwaddleDesigns for a strong Moro reflex

    Hands down the SwaddleDesigns Transitional Swaddle Sack in heathered oatmeal was the only one that worked for our baby who had a strong startle reflex even at 4 months. We used the medium size. It gave her just enough restriction to feel secure but she could still move. Highly recommend!

    View thread →