SwaddleMe WrapSack – 2-in-1 Swaddle & Sleep Sack
We designed the SwaddleMe WrapSack to grow with your baby through every sleep stage. This innovative 2-in-1 design starts as a secure arm swaddle for newborns who need that snug, womb-like feeling, then converts to an arms-free sleep sack when your little one is ready to self-soothe.
The adjustable wings let you customize the fit as your baby grows from newborn through 6 months, while the roomy sack design allows natural leg movement for healthy hip development. Our soft, breathable cotton blend keeps your baby comfortable all night without overheating, and the inverted zipper makes diaper changes quick and easy without fully unwrapping.
WrapSack design highlights
How the 2-in-1 Swaddle Design Works
The SwaddleMe WrapSack gives you two products in one. For newborns who still have a strong startle reflex, use the adjustable wing panels to create a secure arm swaddle that mimics the snug feeling of the womb. The hook-and-loop fasteners let you adjust the tightness around your baby’s chest and arms for a perfect fit that won’t come loose during sleep.
When your baby starts showing signs of rolling or fighting the swaddle—usually around 2-4 months—simply skip the wing wrapping and use the WrapSack as an arms-free sleep sack. The roomy shoulder openings and generous sack design give your baby freedom to move their arms while still providing the security of a contained sleep space. This flexibility means you get months of use from one product, and your baby experiences less disruption during the transition from swaddled to arms-free sleep.
Fabric & Temperature Comfort
We chose a 100% cotton outer fabric for the SwaddleMe WrapSack because it’s naturally breathable and gentle on sensitive newborn skin. The soft-brushed polyester fleece lining adds a layer of cozy warmth without the bulk or overheating risk of heavy blankets, making this swaddle ideal for year-round use in climate-controlled nurseries.
The medium-weight construction works well in rooms kept between 68-72°F—the recommended safe sleep temperature range. In warmer months or warmer rooms, pair the WrapSack with just a diaper or lightweight onesie underneath. During cooler months, add a long-sleeve bodysuit for extra warmth. The breathable cotton exterior helps regulate your baby’s temperature naturally by wicking away moisture and allowing air circulation.
Safe Hip Development & Leg Room
Unlike traditional tight blanket swaddles, the SwaddleMe WrapSack features a roomy lower sack that allows your baby’s legs to bend up and out naturally. This positioning aligns with guidelines from the International Hip Dysplasia Institute for healthy hip development, reducing the risk of hip dysplasia that can occur when babies’ legs are held straight or pressed together for extended periods.
The sack portion is intentionally wider than your baby’s body, giving plenty of space for natural frog-leg positioning and kicking movements during sleep. Your baby can stretch, kick, and move their legs freely while their upper body stays securely contained—the best of both worlds for safe, comfortable sleep. The same thoughtful design found in our original swaddle wraps extends to the WrapSack’s arm containment, creating that secure feeling babies crave without restricting healthy movement.
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SwaddleMe WrapSack Questions
Stop swaddling your baby's arms as soon as they show signs of rolling from back to side or stomach, typically around 2-4 months. Other signs include consistently breaking out of the swaddle, fighting the wrap at bedtime, or seeming to wake themselves by trying to get their arms free. The WrapSack makes this easy—simply stop using the adjustable wing panels and let your baby sleep with arms out in the sack portion.
Every baby develops at their own pace, so watch for your individual child's cues rather than following a strict timeline. Some babies are ready to transition at 8 weeks, while others still benefit from arm swaddling until 4 months. Always place babies on their back to sleep, whether swaddled or arms-free.
Choose Stage 1 for babies 7-14 pounds, which typically covers birth through about 3 months. Stage 2 fits babies 14-18 pounds, generally from 3-6 months. If your baby is at the top of one weight range, we recommend sizing up to ensure adequate room in the sack portion for leg movement.
The adjustable wing design provides flexibility within each size range, so the WrapSack will fit properly as your baby grows several pounds. A proper fit means the sack portion is roomy enough for natural leg positioning, the shoulder openings sit comfortably without gaps, and the wing panels can wrap snugly without pulling or straining the fasteners.
The SwaddleMe WrapSack works well year-round in climate-controlled nurseries kept between 68-72°F. The cotton outer fabric is breathable, and the medium-weight construction provides comfort without excessive warmth. In warmer months or rooms above 72°F, dress your baby in just a diaper or a lightweight short-sleeve onesie underneath the WrapSack.
Watch for signs of overheating including sweating, damp hair, flushed cheeks, rapid breathing, or feeling hot to the touch on the chest or back. If your baby seems too warm, remove a clothing layer or switch to a lighter-weight swaddle option. For very warm climates, consider our muslin swaddle blankets as a more breathable alternative.
Yes, the WrapSack is designed with healthy hip development in mind. The roomy sack portion allows your baby's legs to bend up and out in the natural frog-leg position recommended by the International Hip Dysplasia Institute. This positioning reduces the risk of hip dysplasia compared to tight blanket swaddles that hold legs straight or pressed together.
If your baby has been diagnosed with hip dysplasia or is wearing a Pavlik harness or similar device, consult your pediatric orthopedist before using any swaddle product. In most cases, the WrapSack's generous leg room accommodates healthy positioning, but individual medical conditions require professional guidance.
We recommend having at least two WrapSacks so you always have a clean one available during laundry cycles or after nighttime accidents. Many parents find that three WrapSacks is ideal—one in use, one in the wash, and one clean backup in the drawer.
Newborns go through multiple outfit changes per day due to diaper leaks and spit-up, so having extras means less frequent emergency laundry. The WrapSack is durable and machine washable, maintaining its shape and fastening strength through many wash cycles, so your investment lasts through months of nightly use.
Yes, tumble dry the WrapSack on low heat after washing in cold water on a gentle cycle. The cotton and polyester blend fabric is dryer-safe and won't shrink when dried on low temperature settings. Avoid high heat, which can damage the hook-and-loop fasteners over time and may cause slight shrinkage.
The WrapSack typically dries within 45-60 minutes on low heat. If you prefer air drying, hang or lay flat to dry completely before storage. The fabric dries relatively quickly compared to heavier sleep sacks, so you won't be without a swaddle for long between washes.
The SwaddleMe WrapSack is a 2-in-1 convertible design that starts as an arm swaddle and converts to an arms-free sleep sack, providing longer use as your baby grows. It features a zipper closure at the bottom and adjustable wing panels at the top. The Original Swaddle has a 3-hole design with leg openings and wraps around your baby's body, creating a more traditional swaddle cocoon that's used only for arms-in swaddling.
The WrapSack offers more versatility for the transition period when babies outgrow arm swaddling but still benefit from a contained sleep space. The Original Swaddle provides a snugger overall wrap and is excellent for newborns who need maximum containment. Both feature our trusted adjustable fastening system that stays secure all night.