Roll Over Image to Zoom
Add Your Own Photos

HALO® Muslin Broken Arrow SleepSack® Swaddle

No longer available

Earn $25 back in rewards* for every $250 spent with your Pottery Barn Credit Card.

Learn More

Designed for baby’s safety and comfort, the innovative HALO® SleepSack® swaddle allows you to quickly and easily wrap your baby snugly in three fuss-free steps. Woven from soft organic muslin, it helps promote deeper sleep for your little one by preventing the “Moro” or startle reflex. Designed with our favorite broken arrow print, this three-way adjustable swaddle smartly conforms to your baby’s sleep style so they’re cozy all night long. Plus, it’s Oeko-Tex® Certified to be free from chemicals and synthetics for a healthier night’s sleep.


  • Replaces loose blankets in the crib.
  • Adjustable Velcro® closure on front band for safe, secure swaddling.
  • Sleeveless design to help reduce the risk of overheating.
  • Patented swaddle for easy swaddle method and three ways to swaddle.
  • The SleepSack® has a two-way zipper for convenient dressing and diaper changes.
  • Roomy sack for healthy movement of hips.
  • Oeko-Tex® Certified: Tested in a third-party lab and verified to be free from over 300 harmful substances.
  • Organic Content Standard (OCS) certification. Textiles made of organically grown materials according to the Organic Content Standard guarantees the traceability and integrity of the raw materials during all the manufacturing stages.


  • Made of 100% organic cotton muslin. Organic cotton is grown without the use of toxic and persistent pesticides and synthetic fertilizers.


  • Pottery Barn Kids exclusive.
  • Available in Newborn and Small.
  • Newborn fits babies 0-3 months, 6-12 pounds, 19-23".
  • Small fits babies 3-6 months, 13-18 pounds, 23-26".
  • Machine wash.
  • Imported.


  • Personalization is available, up to nine characters, for an additional cost.
Dimensions & Care


  • Overall (sleep sack opened flat): 37.5" wide x 22.75" long
  • Overall (sleep sack only): 15.75" wide x 15" long
  • Neck: 3" wide
  • Armhole Opening: 4" wide
  • Chest: 11" wide
  • Zipper: 18" long
  • Overall (swaddling blanket opened flat): 37.5" wide x 27" long
  • Overall (sleep sack only): 15.75" wide x 15" long
  • Neck: 3" wide
  • Armhole Opening: 4.5" wide
  • Chest: 11" wide
  • Zipper: 21" long


  • Machine wash in warm water, gentle cycle.
  • Wash dark colors separately.
  • Tumble dry on low heat.
  • Do not bleach.
  • Do not dry-clean.
  • Do not iron.
Shipping & Returns


Standard UPS can deliver most in-stock items within 3-5 business days.


  • Available within the contiguous 48 states
  • An extra charge of $26 per address. 
  • Order by 6pm PT Monday through Friday, you'll receive your order the next business day
  • Orders placed on Friday after 6pm PT through Sunday will arrive on Tuesday.
  • Monogrammed items take additional days for delivery.  A delivery estimate will be quoted on your Payment & Review page.


Select oversized items have an additional delivery and processing surcharge; this charge is listed below the item price.

View our complete Shipping and Delivery.


Eligible items can be returned for a refund of the merchandise value within 30 days of receiving an order or 7 days for Quick Ship upholstery items. An original receipt or gift receipt is required.


  • Stores - You can return most non-furniture items to your local Pottery Barn Kids store for free.
  • By Phone - For non-custom furniture and other oversized items, call Customer Service at 1-800-993-4923
  • By UPS - print a return label from our Returns Policy page and bring to a UPS location.


Delivery fees are non-refundable and prior purchases are not eligible for a price adjustment.

  • Monogrammed/Personalized items
  • Made to Order items, including custom rugs and furniture
  • Mattresses
  • Gift cards
  • Final sale items (with prices ending in $.X7 or $.X9)
  • Items damaged through normal wear and tear


For assistance please contact Customer Service at 1.888.922.4119, 7 days a week, 5:00 am - 9:00 pm (PST). We cannot accept returns on final-sale items ending in .99, monogrammed items or items damaged through normal wear and tear. Made-to-Order furniture or rugs are not eligible for returns. Delivery fees are non-refundable.


View our complete Returns Policy.

Find & Pick a Store

Tap here to close

The location you specified seems to be incorrect. Please enter a valid address or ZIP code.

Stores Nearby:

  • Populating store list please wait.

There are no stores within miles of you.

Try entering a new location or adjusting the distance.

Prices and promotions may vary in stores. We make every effort to give you current product availability information, but our store inventory is always changing so an item's availability cannot be guaranteed.