HALO SleepSack Swaddle, 100% Cotton, TOG 1.5
A familiar 3 way swaddle sack that eases the move to arms out, with a noisy closure.
We bought BSTOPPT Newborn Sleep Sack Baby Swaddle, 3-6 Months, 3-Way Adjustable, 100% Rayon Cotton, TOG 0.5 (Heart&Floral). It's no longer documented anywhere, so this page reviews the closest well-covered match. It is the best documented 3 way adjustable swaddle sack sold in a 3 to 6 month size, though it uses warmer cotton than the original's rayon.
The short version
- Parents who want one swaddle sack that can go from arms in to arms out
- Babies in the 13 to 18 lb range who still like a snug wrap around the torso
- Your baby is already rolling, since HALO says swaddling should stop at that point
- You want a light TOG 0.5 fabric for a warm room
- Fastener noise at night bothers you
What owners like
- Simple for new parents, easier than wrapping a blanket
- Flexible arm positions help with the move away from full swaddling
- Familiar from hospital nurseries
Common complaints
- The hook and loop closure is loud and can wake a light sleeper
- Some find the closure cumbersome and the fabric feels lower quality than pricier swaddles
- Once arms are out it no longer dampens the startle reflex
Based on BabyGearLab's swaddle test, a pediatric sleep coach's comparison of transition products, and HALO's own product and guidance pages..
Research scores
Scored from the maker's specs and what owners report. Drew's own notes and photos will refine these.
Ownership
- Jul 2025
First bought.
Drew's hands-on notes for this product are on the way. Long-term updates will be added to this timeline.
What it does
A zip up wearable swaddle with adjustable fastening wings that can be used arms in, hands to face or arms out; reviewed here in place of the BSTOPPT rayon sleep sack it resembles.
- Wings wrap the torso and close with hook and loop fasteners for a snug fit
- Arms can be wrapped in, left near the face, or left out, one or both
- Double zipper opens from the bottom for diaper changes
- Roomy sack below the wings that HALO says supports healthy hip development
- HALO designed the 3 way wings to ease the move from swaddle to an arms free sleep sack
A sound pick for parents who want a well known 3 way adjustable swaddle sack in a size that runs to 18 lbs, with wings that let a baby move arms out one at a time. The trade-offs are a noisy hook and loop closure that some reviewers find fiddly at night, and a warmer TOG 1.5 cotton fabric where the original was a lighter TOG 0.5 rayon.
How it compares
Specs
- Fabric
- 100% cotton
- Warmth
- TOG 1.5
- Sizes
- Preemie (14 to 19 in, birth to 5 lbs), Newborn (19 to 23 in, 6 to 12 lbs), Small (23 to 26 in, 13 to 18 lbs)
- Closure
- Adjustable fastening wings plus a double zipper
- Ways to swaddle
- Arms in, hands to face, or arms out
- Size matching the original
- Small, sold on Amazon as 3 to 6 months
Worth knowing
- HALO says to always place a baby on their back to sleep.
- HALO says swaddling must stop once a baby can roll onto the tummy, so the arms are free to push up.
- HALO advises dressing the baby lightly under the swaddle, checking a TOG chart against room temperature, and keeping blankets, pillows and bumpers out of the sleep space.
Questions
When should I stop using the HALO swaddle with arms in?
HALO says to stop swaddling once a baby shows signs of rolling from back to front, or keeps breaking free. Its advice is to move one arm out, then both arms out, then to a sleeping bag.
What size HALO swaddle for a 3 to 6 month old?
HALO sizes by weight and length. Small fits 13 to 18 lbs and 23 to 26 inches.
Is the HALO SleepSack Swaddle hip healthy?
HALO says the roomy sack lets the legs and hips move and supports healthy hip development.
Can you use it arms out?
Yes. The wings can wrap with one or both arms out, which HALO suggests as a step toward arms free sleep.
Sources
- HALO Sleep: Swaddle 100% Cotton TOG 1.5
- HALO Sleep: When to stop swaddling your baby
- HALO Sleep: Swaddle safety, how to swaddle a baby
- BabyGearLab: The best baby swaddles
- Pediatric Sleep Coach: Recommended products for an easier swaddle transition
- Amazon.com: HALO 100% Cotton Sleepsack Swaddle, 3-Way Adjustable, TOG 1.5, Small, 3-6 Months
Researched 2026-10-02. We bought this product; our page is built from the maker's details and what owners report across reviews and forums. We never copy Amazon customer reviews.