Best Toddler Sleep Sack

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If you’re in a hurry and just want to find out what the best toddler sleep sack is, I’d recommend the Halo Sleep Sack.

Once you have kids, your peaceful nighttime routine is completely changed. Once my little ones arrived, it was nothing but interrupted sleep—complete with crying and me fumbling for diapers, pajamas, blankets, and the light switch. Things do get easier after those initial months, but even toddlers can keep you up at night.

Sleep sacks allowed me to change and tuck in my little ones quickly and smoothly. It also meant they could sleep safely and soundly without any blankets getting tangled. If you’ve been thinking about using a sleep sack for your toddler, I have all the information here you’ll need.

In this article, I am breaking down the best toddler sleeps sacks, and in the end, I’ll choose the winner.

Here are the toddler sleep sacks I will be reviewing:

What Is A Sleep Sack Anyway?

If you haven’t heard of sleep sacks before, they are an item of clothing used for babies and toddlers. They come in different sizes and can be used with newborns (even when they’re quite small) as well as older babies.

Different Types Of Sleep Sacks

Open At The Bottom

There are two main types of sleep sacks. Some are open at the bottom. These are usually finished with a sewn-in piece of elastic at the bottom to help contain little feet. The fabrics used with this kind of sleep sack are usually lightweight and the open sleep sack is ideal for warm weather.

Closed At The Bottom

The other kind of sleep sack has a closed bottom. These are normally equipped with a zipper, but may be finished with snaps down the front as well. These enclosed sleep sacks prevent little feet from escaping and are great for cooler weather. Frequently, you’ll find these sleep sacks are made from fleece or other warm materials.

What Do Different Types Of Sleep Sacks Have In Common?

Both kinds of sleep sacks may have sleeves. Newborn sleep sacks are almost always sleeved and many have fold-down mitts to cover hands and help prevent accidental scratching. Some of the fleece wearable blankets are sleeveless and can be great for transitional weather or layering.

The traditional sleep sack is just that—a sack without feet. As safe sleeping guidelines have changed, however, there have been some sleep sacks for older kids that are equipped with feet. This allows a mobile toddler to safely stand while dressed for bed. These are still not ideal for walking, though, as they are “sack” shaped and not shaped like pants.

Why Should You Consider Using A Sleep Sack?

There are many good reasons to use sleep sacks. When you have a very young baby, you’ll likely be up several times throughout the night changing diapers. Sleep sacks allow you quick and easy access for a diaper change. They also avoid a full undress, which can help you keep your baby in sleep mode.

Another great reason to use sleep sacks? They enable you to keep your little one warm while sticking to safe sleeping guidelines. They also help prevent excessive jerking or movement where the toddler can unintentionally wake themselves. At the same time, they allow your toddler to be unconstrained. It’s really the best of both worlds. 

While sleep sacks are amazing for young babies, they’re great for more mobile toddlers as well. If you do swaddle your baby, you know once your they begin to roll over, swaddling should stop. This can be a difficult transition for a baby who’s previously relied on being swaddled at bedtime. A sleep sack gives a similar feeling of security while leaving the hands and arms free.

There’s one more great reason to love using a toddler sleep sack. If you have a toddler who likes to undress themselves or remove their diaper, you can help limit that behavior with a sleep sack. Even the most dexterous toddler is unlikely to be able to navigate the zipper or fumble with their diaper through the material.

What To Consider When Shopping For Toddler Sleep Sacks

When shopping for a toddler sleep sack, you’ll want to keep the following in mind:

How old is your little one?

The age of your child will help dictate which wearable blanket is best for you. A very young baby may sleep best in a lightweight, long-sleeved sleep sack that comes with mitts. A toddler may prefer a heavier weight sleep sack, especially if there is no additional blanket and the weather is cool.

What Time Of Year Is It?

The colder it is, the more likely it is you’ll want to use an enclosed, zip-up wearable blanket.

Is the material approved for sleep?

Toddlers’ sleepwear must be approved for sleeping. This means it’s been treated with a fire-retardant element.

What size sleep sack does your toddler need?

Sleep sacks come in a wide variety of sizes. You’ll find toddler wearable blankets labeled “one size,” “6–12 months,” “12–18 months,” and various other sizes all the way through 24 or even 36 months, and sometimes bigger.

Do you plan on layering while your child is wearing a toddler sleep sack?

This will help you determine what material is best for your child and whether or not your toddler sleep sack should have sleeves.

My Top Toddler Sleep Sack Reviews

If you’re looking for a great wearable blanket for your toddler, you’ll want to check out the following products. We’ve combed through what’s currently on the market and these are some of our favorites.

Woolino Organic Cotton Sleep Sack

The Woolino Organic Cotton Sleep Sack is made from 100 percent certified organic cotton and is available in a wide variety of sizes, to suit newborns through 3-year-olds. It’s a great weight for warmer weather and nurseries. Organically cultivated, it’s also an earth-friendly product.

This material is free of any pesticides or chemicals that may be found in conventionally grown cotton products. The unique two-way zipper allows you easy access where you need it most, for quick diaper changes. The zipper is also lined on the inside to help prevent accidentally catching your child’s tender skin.

A great option for little ones with sensitive skin, this wearable blanket is finely woven and soft. It’s breathable, which allows your toddler to have great air-exchange and promotes healthy skin. At the same time, it will work to keep your toddler warm without the added bulk or danger of additional blankets in the sleep space. 

This is a sleeveless toddler sleep sack option. Your choices of color include blue and white stripe, pink and white stripe, or silver and white stripe. This product comes with a 6-month warranty and is produced by a United States company with a US-based customer service.


  • Environmentally-friendly cotton with no toxins or chemicals
  • Great for warm weather and suitable for layering or transitioning into cooler weather
  • Available in many sizes
  • Two way zipper


  • This product is considered a sleeping bag and exempt from needing to meet safety guidelines for sleeping clothing—therefore it’s not flame-retardant

Halo Sleep Sack

Responsible for the original sleep sack, Halo is a long-standing and respectable name in the wearable blanket industry.

This toddler sleep sack is sleeveless and made from touchably soft polyester micro-fleece. Both the neckline and the armholes are generously cut to provide a safer fit and to help prevent overheating. This wearable blanket has a TGO rating of 1, which means it’s well-suited for moderate weather and can be used to layer for cool temperatures.

This wearable blanket is fitted with an inverted zipper. It opens from the bottom so there’s no need to fully undress your toddler during diaper changes in the night. It also allows you the option to unzip and allow for air exchange if your toddler seems too warm.

This unit is approved as safe by the International Hip Dysplasia Institute and considered “hip healthy.” The roomy cut allows plenty of room for your toddler to move while sleeping.

This wearable blanket is available in a wide variety of sizes that will work from newborn through 2 years of age. Shown here is the XL size, suitable for kids aged 18–24 months who weigh 26–36 pounds. There are 24 different colors to choose from, including both prints and solids.


  • This toddler sleep sack washes well and is easy to care for
  • A great choice for layering and transitional weather
  • Inverted zipper
  • Designed to help prevent overheating


  • These are cut generously through the chest as well as through the lower half of the body—you may want to consider ordering a size down

Slumbersafe Toddler Sleep Bag

If you’ve been looking for a versatile long sleeve toddler sleep sack option, this Slumbersafe piece can be a good choice. It’s available in two sizes: 6–18 months and 18–36 months.

Both sizes come with decorative animal embroidery. The sleeves are non-detachable and the zipper is outfitted with a protective zip cover to prevent the snagging of skin. The zipper runs down the front middle of the wearable blanket and terminates at the feet, allowing for easy nighttime changes.

This toddler sleep sack can be worn long, with the 18–36-month sizing reaching 43 inches in length. A great feature of this wearable blanket is that it can accommodate a wide variety of ages. If you have a younger child or don’t need the extra length, this sleep sack can also be worn shorter. When folded it measures 39 inches in length.

The material used for this toddler sleep sack is rated 2.5 TOG, which means it’s a great option for cooler rooms and suitable to temperatures of 59–70 degrees Fahrenheit. Layering with a long-sleeved t-shirt or onesie may prove difficult because of the sleeves.

This wearable blanket is also padded. While the outer material is made from 100 percent cotton, the padding is made from polyester. It’s easy to care for and can be machine washed and dried.


  • This unit is padded for extra warmth and great for cooler temperatures
  • The length is adjustable to help avoid excess fabric in the sleep space


  • Sleeves can be a little tight

Halo Big Kid Wearable Blanket

Noticed your little one has started to pull themselves up or walk in their sleep sack? You may be interested in using a toddler sleep sack that has feet to prevent an accident. This Halo model can be a great solution. It has the benefits that come along with using a wearable blanket without the risk of getting caught up in excess material at the feet.

This is a great layering piece and is really designed to be worn over regular bedtime wear. Though your child’s feet can be exposed for easy walking, they can also tuck snugly into the wearable blanker for warmth while sleeping.

This wearable blanket is available in two sizes: 2/3 and 4/5. The largest size can be worn by a child 46 inches tall and can accommodate up to 50 pounds. This toddler sleep sack has a TOG rating of 1 and is made from knit material and microfleece. It’s available in multiple colors.

This zipper terminates at the feet, which is great for toddlers making nighttime visits to the bathroom. Kids are still able to easily use the zipper when needed so nighttime potty training won’t be negatively impacted by using this wearable blanket.


  • A great option for mobile toddlers
  • A perfect piece for layering


  • While the feet are exposed, range of movement is still compromised in this toddler sleep sack—it may give your toddler a false sense of their mobility

KYTE Sleeping Bag

This sleeping bag is made from soft bamboo. It’s a great, eco-friendly option for a toddler sleep sack produced with sustainability in mind. The material is breathable and washes well.

It’s a great option for layering over long sleeves during colder weather. This size is suitable for kids ages 18–36-months old, though other sizes are available.

The bamboo material does include some spandex, which gives this garment great recovery and helps it keep its shape longer. This piece is stylish and comfortable, without any embellishments or potential hazards. The sleek side zipper disappears from your toddler’s view.

If you have a toddler who likes to fiddle with zippers or undresses themselves, this is a great feature to have in a sleeping bag. They aren’t able to see the zipper and so are less likely to fiddle with it. Even if they are interested in the zipper, the snap tab at the top is difficult for them to manipulate open.

I love that this wearable blanket is available in a wide variety of cute, soothing colors. If you decide it’s the perfect option for your child, you can introduce several different colors to your child’s wardrobe.


  • A great option for toddlers who like to undress themselves
  • A nice wearable blanket for layering


  • This line of sleep sacks has a more narrow size-range, which means you’ll need to replace with larger sizes more frequently

Final Thoughts: Bringing Home The Best Sleep Sack For Your Toddler

Using sleep sacks doesn’t have to stop just because your toddler has gotten older. You may be surprised to learn wearable blankets are just as great for a toddler as they are for a newborn.

While all of the sleep sacks above are good options, I believe the Halo Sleep Sack is the best sleep sack for toddlers on the market. It has a fairly traditional design, and works well for most toddlers.

Cristin is a co-founder of Smart Parent Advice, and the loving mother of two wonderful children. In her free time, she can often be found in a yoga studio or catching up on her favorite shows.