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Ideal Temp SleepSack Swaddle

Rated 4.3 out of 5
423 Reviews|, Answered Questionsor
$
37.99
Free shipping & returns for Babylist orders $45+
color
Heather Grey/Aqua
Thumbnail of Heather Grey/Aqua
size
Small
1

Overview

Description

The HALO SleepSack Ideal Temp Swaddle helps regulate baby’s temperature thanks to innovative material that absorbs, stores and releases heat. IntelliThread fibers are embedded within the cozy fabric and won’t wash out or fade.

The swaddle also features HALO’s signature three-way design that adjusts to fit baby’s sleep style: arms in, hands-to-face or one or both arms out. An inverted zipper (with scratch-free zipper covers) allows for easy diaper changes.

Another good-to-know: the design is recognized by the International Hip Dysplasia Institute as promoting healthy hip development.

“Back is Best” embroidery is a gentle reminder to place baby in this recommended sleep position.

Ideal Temp fabric is designed to be cozy with some stretch for comfort. Because of this, it can run slightly bigger than our other swaddles. Make sure to choose the correct size for your baby’s height and weight. We recommend sizing down if your baby is in between sizes

It should fit snuggly around your baby’s arms and chest. If you notice excess material, the swaddle may be too big. We recommend waiting until your baby is slightly older and bigger to ensure a snug fit.

What we  about it

Temperature-regulating fabric helps keeps baby comfortable for better sleep.

Details

  • Age: 0-6 months
  • TOG: 1.5
  • For use over regular sleepwear
  • Fabric: polyester/rayon blend
  • Three-way adjustable swaddle
  • Secures arms to prevent startle reflex and scratches
  • Adjustable fasteners for a just-right fit
  • Cozy blend of polyester and rayon
  • Machine wash and tumble dry (close zipper and fastener strips before washing; wash inside out)

More to consider

More to love from Halo

Q&A

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Customer reviews

423 Ratings
4.3out of 5
423 Ratings

Rated 5 stars by 65% of reviewers

Rated 4 stars by 19% of reviewers

Rated 3 stars by 7% of reviewers

Rated 2 stars by 2% of reviewers

Rated 1 star by 7% of reviewers

1-10 of 423 Reviews
Rated 5 out of 5
Halo swaddles have been amazing
Halo swaddles have been amazing for our baby. The easiest swaddle we’ve come across with having tried multiple other brands. We plan to use Halo for future transitions to sleep sacks, etc.
Feb 8, 2026
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Great quality
Jan 26, 2026
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Rated 4 out of 5
The Velcro is HUGE which
The Velcro is HUGE which is great if your baby doesn’t mind the noise and extra motion.
Jan 11, 2026
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Rated 5 out of 5
Great swaddle to layer my
Great swaddle to layer my little one. So soft.
Jan 9, 2026
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Rated 5 out of 5
Such a soft swaddle. Works
Such a soft swaddle. Works great!
Jan 9, 2026
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Rated 4 out of 5
Love the ideal temp products.
Love the ideal temp products. The Velcro is just VERY loud, there’s no easy/delicate way to remove the swaddle for a dream feed. Also not sure why there’s a large tag.
Jan 8, 2026
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Rated 5 out of 5
I adore this swaddle so
I adore this swaddle so much I am going to purchase the bigger size so we can keep using it. My LO was born at 11 pounds so the newborn size is already getting tight. I live in the Caribbean and I was worried it was going to be too warm since we don't use the air conditioner but it definitely does regulate temperature and keeps them comfortable.
Dec 26, 2025
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Rated 5 out of 5
Keeps baby swaddled without worrying
Keeps baby swaddled without worrying he’s getting to hot
Dec 22, 2025
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Rated 3 out of 5
Good one, wish it could
Good one, wish it could withstand more cold. Not that cozy for winters
Dec 5, 2025
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Rated 4 out of 5
This was lighter weight than
This was lighter weight than I thought it would be! In comparison to the organic cotton on I have this one feels lighter/thinner. I use this one when my baby is in micro fleece onesies, I don’t think it would be warm enough over a normal onesie going into the winter months. Likely would have been great for a summer baby!
Nov 29, 2025
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