Halo Sleep Sacks | Full, Honest Review by Actual User & Mom

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A Halo SleepSack is specifically created as a secure and comfortable option for babies instead of using regular blankets. The design includes convenient openings for the head and arms, ensuring unrestricted movement for the legs and hips. The added feature of an inverted zipper also makes changing diapers easier.

The Halo SleepSack is perfect for little ones transitioning out of swaddles as it provides cozy comfort and warmth while allowing for free movement of the arms and legs and preventing suffocation. 

Controlled studies regarding the safety of sleep sacks found that they “are as safe, if not safer than other bedding when examining SIDS as an outcome.”

As my twins were beginning to transition out of their swaddles, I knew I needed to find something that would keep them warm at night while still allowing them to move freely and remain safe in their cribs. 

I found Halo SleepSacks to be the most widely available and popular sleep sack option, so I snagged a few.

Two years later, we still use them every single night. 

Use my honest review below to decide if the Halo SleepSack is the answer you’ve been looking for.

Key Takeaways

  • Allows parents to continue to meet safe sleep guidelines while keeping their baby warm during the night.
  • Lets baby move their arms and legs freely while still restricting their ability to crawl and climb.
  • The inverted zipper allows for easy diaper changes without completely undressing your baby.
  • Many different colors and patterns are available.

Who Should Buy Halo Sleep Sacks?

Halo SleepSacks, Swaddles, and Wearable Blankets are great, budget-friendly options for parents with babies too old for swaddles and too young for loose blankets.

They are great for keeping babies safe and warm while sleeping and preventing curious toddlers from crawling out of their cribs.  

If your baby is on the brink of rolling and swaddles are no longer safe, a Halo SleepSack is a great transitioning option as babies at this age should not be allowed to sleep with loose bedding in the crib for safety reasons.

Halo Sleep Sacks Pros & Cons

AffordableNot as cooling or soft as other (more expensive) brands
Comes in many different patterns and materialsMade of cheaper fabric
Wearable blankets keep older babies warm and safe
Easy to transition from swaddle to sleep sack

About Halo Sleep Sacks

Halo SleepSacks are wearable blankets, the next step after the baby swaddle, designed to keep babies and toddlers warm while they sleep. 

Sleep sacks are meant to replace blankets or other bedding that pose risks to babies.

Wearable blankets are exactly what they sound like—blankets that zip up over the legs and body but leave the arms free so that your baby can move around. 


Halo SleepSacks come in a variety of materials including: 

  • Cotton
  • Muslin 
  • Fleece
  • Ideal Temp Smart Fabric


Most sleep sacks have size options ranging from NB to XL.

On Halo’s website, you can find size charts for their products that show the appropriate size for your baby’s height and weight. 

Colors & Designs

I love the many different colors and pattern options that Halo offers! There are so many!

With solids, multicolors, stripes, and numerous prints available, you’re sure to find one that you like.

Whether you are looking for a more neutral SleepSack or a fun pattern, you won’t be disappointed. 

Safety & Comfort

Regarding compliance with safety standards, the Halo SleepSack surpasses expectations, providing parents with peace of mind and ensuring a safe and comfortable sleep environment for their babies.

Sleeveless Design

One key feature that sets the Halo SleepSack apart is the absence of sleeves.

This design choice is based on recommendations from pediatricians and safety experts who advise against restricting arm movement when babies are able to roll over.

The SleepSack offers a secure and cozy alternative to blankets that allows for unrestricted movement of the arms and legs while keeping the upper body comfortably covered.

Hip Health

Hip safety is another crucial aspect addressed by Halo SleepSack.

The SleepSack has ample room for natural hip development, adhering to guidelines from the International Hip Dysplasia Institute for “hip-healthy” products.

The sack provides ample space for the baby’s legs to move freely, promoting healthy hip joint positioning and reducing the risk of developmental dysplasia.

Breathable Material

Breathability is yet another essential feature of the Halo SleepSack.

The fabrics are carefully selected to ensure optimal airflow, allowing heat to escape and preventing overheating.

This is crucial as overheating has been linked to an increased risk of sudden infant death syndrome (SIDS).

The SleepSack’s breathable construction helps maintain a comfortable temperature throughout the night, minimizing the risk of the baby becoming too hot while asleep.

Safety Standards

Halo SleepSack’s commitment to safety is further reinforced by its compliance with rigorous safety standards, including those set by the Consumer Product Safety Commission (CPSC) and the American Society for Testing and Materials (ASTM).

The SleepSack undergoes extensive testing to meet and exceed these standards, ensuring it is free from hazardous materials and meets strict criteria for flammability, durability, and overall safety.

Key Features

Halo SleepSacks are renowned for their key features that prioritize infant safety and comfort. These features include: 

  • Baby’s arms are free.
  • Promotes safe sleep practices by eliminating loose blankets.
  • Provides ample room for natural hip development.
  • Breathable fabric ensures optimal airflow, preventing overheating.
  • The zip-up design allows for easy diaper changes.

Ease of Use

Honestly, Halo sleep sacks are so easy to put on and take off of your baby.

I have used others with different designs (zipper up the side, buttons, etc.), and Halo’s are by far the easiest and quickest to put on, even in the dark.

Once you lay your baby on the open sack, all you have to do is put his/her arms in the armholes, tuck the legs in, and then zip up!

Why I Love Halo Sleep Sacks

I’ll be fully transparent—the main reason I use HALO sleep sacks is that I feel like they are the most affordable option while still offering good quality.

They aren’t overly fancy, but they get the job done, and they are so easy to find at consignment sales or children’s used clothing stores.

Other things I love: 

  • Extremely easy to wash and clean.
  • Durable and holds up to many washings.
  • High resale value. 

What I Would Change

To be perfectly honest, there really isn’t anything that I would change about the Halo SleepSack. They have worked perfectly for us! 

Perhaps the quality of the fabric could be improved, but with higher quality comes a higher price tag, which would eliminate one of the SleepSack’s biggest benefits—affordability.

Halo SleepSack vs. Halo SleepSack Swaddle

The Halo SleepSack is a wearable blanket designed for older babies and toddlers.

When zipped up, it keeps the baby’s legs secure in the sack while leaving their arms free to move.

This is ideal for older babies who can roll over but still need the warmth, comfort, and security of a wearable blanket. 

The SleepSack Swaddle is for newborns and younger babies who cannot roll over.

The design is similar to the SleepSack in the sense that the baby’s legs are zipped in; however, it has additional fabric flaps that can be folded over the baby’s chest in order to keep the arms tucked in as well.

This keeps the baby wrapped tightly for warmth, comfort, and security. 

How Halo SleepSack Compares To Other Wearable Blankets

When comparing Halo SleepSacks to other popular brands like Kyte Baby, Swaddle Designs, and Aden+Anais, several factors come into play, including price, quality, material, and key features.

Kyte Baby is a popular sleep sack brand that focuses on softness and sustainability.

Their wearable blankets are made from bamboo viscose, which is hypoallergenic and eco-friendly. They are incredibly soft!

Kyte Baby’s products are known for their luxurious feel and are often on the higher end of the price spectrum.

If they weren’t twice the price of Halo SleepSacks, I would probably try them as I have heard amazing things about them!

They just weren’t in our budget at the time, and I felt like Halo SleepSacks would serve the purpose that we needed them for, and they have! 

Aden+Anais is another brand renowned for its muslin fabric wearable blankets.

Muslin is lightweight, breathable, and soft, making it ideal for warmer weather.

Aden+Anais offers a wide variety of prints and patterns, appealing to parents seeking a specific aesthetic.

Aden+Anais is very comparable to Halo in price, material, and quality. 

Nested Bean is another popular brand that sells weighted sleep sacks.

I have tried these and really did not like them. I don’t think my babies cared for them either.

The design of the sleep sack makes it a hassle to put on, and the weight on the chest was uncomfortable for my babies who are belly sleepers.

Recent guidelines advise that weighted sleep sacks and other sleepers should not be used for safety reasons.

In terms of quality, all these brands have established reputations for well-made products, but individual preferences may vary depending on the desired fabric, design, and features.

Frequently Asked Questions

Is the Halo Sleep Sack Safe?

Yes, all Halo sleep products are perfectly safe and exceed all necessary safety standards.

Halo products are used in hospitals nationwide because of their safety features and reputation for helping little ones sleep soundly. 

What Is a TOG Rating?

TOG stands for Thermal Overall Grade. A product’s TOG rating tells you how well that product retains heat.

The higher the TOG rating, the warmer and more insulated the product is.

The temperature of your baby’s bedroom will help you determine what Halo SleepSack will be most comfortable.

The SleepSacks come in several materials, each with a different TOG rating.

The cotton and muslin SleepSacks have lower TOG ratings for warmer temperatures, and the fleece SleepSacks have higher TOG ratings for cooler temperatures. 

What Should a Baby Wear Under a Halo SleepSack?

Your baby should wear cool, loose-fitting pajamas underneath their sleep sack. A onesie is often a good choice.

How Long Can a Baby Sleep in a Halo?

Technically, a Halo SleepSack is geared for babies 0-24 months.

However, I know plenty of parents who still use sleep sacks for their toddlers beyond that age for many reasons including safety, warmth, and familiarity.

At that point, it really depends on your baby’s preference and if they can still fit in a sleep sack. 

Are Halo Sleep Sacks Weighted?

No, Halo SleepSacks are not weighted. Weighted swaddles, sleep sacks, and blankets are no longer considered safe for babies.

Do Doctors Recommend Sleep Sacks?

Weighted sleep sacks are not recommended. However, regular non-weighted sleep sacks are highly recommended by pediatricians.

Sleep sacks are much safer than any other type of bedding for newborns and young babies.

They provide warmth while preventing suffocation and overheating that could be caused by blankets or other bedding.