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The 10 Best Summer Sleep Sacks for your Baby

Looking for the best way to dress your baby for sleep in the heat? Check out this list of summer sleep sacks to keep your baby cool and comfy this summer!

sleep sack in baby crib

I’m a huge fan of using sleep sacks to dress your baby for sleep! They’re especially great when your baby is rolling over in sleep and you need to transition out of the swaddle.

The best sleep sacks will keep your baby warm and cozy while they sleep. But are they a good option in the summer when temperatures rise and in hot climates?

Thankfully there are plenty of lightweight sleep sack options for summer, and I’m here to share my favorites.

Here are my 10 favorite sleep sacks for the summer. Keep reading to find the right sleep sack for the warmer nights!

baby awake in crib

The 10 Best Sleep Sacks for Babies in the Summer

  1. Woolino Sleep Sack
  2. Kyte Baby Sleep Sack
  3. Love to Dream Swaddle Up
  4. Zipadee Zip Sleep Sack
  5. Baby Deedee Sleep Nest Lite
  6. Burt’s Bees Wearable Blanket
  7. Halo Sleep Sack
  8. Hudson Sleep Sack
  9. Mama Cheetah Sleep Sack
  10. TILLYOU Wearable Blanket
Woolino Sleep Sack for summer

1. Woolino Sleep Sack

The Woolino Sleep Sack is one of the best sleep sack options and a favorite of so many families because of its versatility.

At nearly $100, it’s one of the most expensive sleep sacks there is, but for good reason. It comes in a universal size (2-24 months), so it’s the only sleep sack you need for your growing babe!

The Woolino is made of super fine merino wool, making it a 4-season sleep sack that keeps your baby sleeping comfortably year-round. It’s suitable for sleep in temperatures from 63-75 degrees F.

The great thing about the Woolino is that it also makes for a great winter sleep sack, so you don’t have to buy multiple sleep sacks for different seasons.

It has adjustable shoulder tabs and a two-way zipper system, giving you access for easy diaper changes.

Another unique feature of the Woolino is that it has built-in seatbelt slots, so you can keep your baby cozy even while they’re sleeping in the car!

Kyte Baby Sleep Sack for summer

2. Kyte Baby Sleep Sack

The Kyte Baby lighter-TOG sleep sack is made from silky bamboo fabric with no inner lining, which makes it a nice and cool option for the summer.

The 0.5 TOG rated option is sure to keep your little one comfortable when they’re sleeping in the warmer months. It’s good for nurseries that get as warm as 78 degrees F.

Kyte Baby also makes higher TOG sleep sacks with polyester lining (in 1.0 and 2.5 TOG), in case you love it so much that you want to use their sleep sacks in cooler temperatures!

Love to Dream Swaddle Up for summer

3. Love to Dream Swaddle Up

I really like the Love to Dream Swaddle Up Transition Bag because its design helps you gently transition your baby out of the swaddle.

It’s shaped similarly to a traditional swaddle and has removable sleeves at the top, allowing you to keep your baby in a tighter fitting garment while still freeing their arms before they begin to roll.

The Swaddle Up is also the only swaddle that allows your baby to sleep with their arms in an “up” position instead of swaddled to their sides.

Love to Dream also makes a 0.2 TOG option called the Swaddle Up Lite. The Swaddle Up Lite is the lowest TOG rating on our list, making it an excellent light weight sleep sack for summer in the warmer climates.

Zipadee Zip Sleep Sack for summer

4. Zipadee-Zip Sleep Sack

Although the Zipadee-Zip website doesn’t list a TOG rating for this sleep sack, it is made of soft and breathable material designed specifically to avoid overheating.

The Zipadee-Zip’s unique starfish design makes it another great alternative for families who are transitioning out of the swaddle.

This sleep sack keeps all of your baby’s limbs (including their hands) enclosed and cozy without restricting their movement.

Baby Deedee Sleep Nest Lite for summer

5. Baby Deedee Sleep Nest Lite

The Baby Deedee Sleep Nest Lite comes in three different sizes ranging from newborn to 36 months, making it one of the most long-lasting brands that can grow with your baby.

The 100% breathable soft cotton is rated 0.6 TOG and is recommended for room temperatures anywhere between 70-80 degrees F. That means it’s a perfect option to dress baby for sleep in the summer!

Like the Woolino, the Sleep Nest Lite has unique button-closure shoulder straps that set its design apart from the majority of brands. This gives you easy access to get your baby in and out of the sleep sack without a fuss.

Burt's Bees Sleep Sack for summer

6. Burt’s Bees Wearable Blanket

Burt’s Bees sleep sacks are a well-known favorite among many new parents. With adorable neutral patterns and buttery soft fabric, these sleep sacks are a real crowd pleaser!

These beloved sleep sacks are made from 100% organic cotton, which is a major plus for sustainability.

The Burt’s Bees Wearable Blanket comes in two different TOG ratings, including a lightweight 0.5 TOG for warm summer months.

I love all the beautiful designs they have to choose from! The double zipper with zipper guard also makes these sleep sacks functional and safe.

Halo Sleep Sack for summer

7. Halo Sleep Sack

Halo boasts on their website that their sleep sacks are the “#1 choice of 1,700 hospitals nationwide,” and I have to say they’re pretty great!

The sleep safety expert in me also loves that all of the Halo Sleep Sacks are embroidered with the safety reminder that “Back is Best.”

The Halo is a 100 percent cotton muslin sleep sack with a 0.5 TOG rating. That means it’s a great breathable and cool option for a summer sleep sack.

Halo makes sleep sacks going all the way up to 5T, making them one of the best toddler sleep sacks for big kids!

Hudson Sleep Sack for summer

8. Hudson Baby Sleep Sack

The Hudson Baby sleep sack is similar to the Halo, but you can often find it at a slightly lower price point.

Like the Halo, the Hudson Baby sleep sacks range in sizes from 0-24 months. They’re also 100% cotton and a 0.5 TOG rating.

One of the things that sets the Hudson Baby brand apart is that, according to reviewers online, their sizing tends to run big. That means many families use these sleep sacks well beyond when their toddler turns 2.

For summer months, I recommend choosing one of their sleeveless sleep sack options as opposed to long sleeve.

Mama Cheetah Sleep Sacks for summer

9. Mama Cheetah Sleep Sack

The Mama Cheetah sleep sacks are some of the most budget-friendly on my list.

If you’re looking for a good deal, you can get a two-pack of Mama Cheetah sleep sacks for the same price as one Burt’s Bees sleep sack!

These sleep sacks come in sizes S-XL, ranging from 0-24 months. The 100% organic cotton is lightweight and breathable, giving them a 0.5 TOG rating.

I like that Mama Cheetah’s hassle-free refund policy shows they stand behind the high quality of their product!

TILLYOU Wearable Blanket for summer

10. TILLYOU Wearable Blanket

I found the TILLYOU sleep sacks have over 10,000 five-star reviews from happy parents. That’s a great endorsement!

These sleep sacks are the least expensive on my list, and come in a two-pack. They have so many cute patterns, which is also a major plus.

The TILLYOU sleep sacks are made from breathable natural cotton with a 0.5 TOG rating, which makes them another great option for the summer.

baby sleeping

Does My Baby Need a Sleep Sack in Summer?

Although you don’t have to use a sleep sack with your baby, I highly recommend it! In fact, it’s one of my baby nursery must haves for good sleep!

Chances are pretty good that you’ve been using a swaddle or sleep sack to dress your baby for sleep in the cooler months. That means your baby is used to wearing something other than just pajamas at night time!

Putting your baby in a sleep sack as part of your nap routine and bedtime routine is a great sleep association. It signals that it’s time to wind down and get ready to snooze.

It’s also a safe alternative to using loose bedding. Keeping loose objects out of your baby’s crib until baby is 12 months old is recommended as safe sleep guidelines and to reduce the risk of Sudden Infant Death Syndrome (SIDS).

As long as you choose a nice lightweight option, it’s definitely possible to dress your baby for sleep in the summer using a sleep sack.

What TOG is a Summer Sleep Sack?

sleep sacks

A garment’s TOG rating is a great help for how to dress your baby for the winter or summer months.

When you’re picking out a summer sleep sack, pay careful attention to the garment’s TOG.

The Thermal Overall Grade (TOG) rating is a way to measure the warmth of a particular fabric. The higher the TOG rating, the warmer the fabric will feel to your baby. 

Sleep sack TOG ratings can range between 0.2 and 2.5.

In the summer, you’ll want to use a sleep sack with TOG rating of 1.0 or less. A TOG rating higher than 1.0 is only appropriate for air temperatures of 64 degrees F or lower.

In most cases, your baby will be happy and comfortable in a 0.5 TOG sleep sack in the summer, with a room temperature between 70-80 degrees F.

You can find Halo sleep sacks that fit your baby anywhere from 0-24 months, all the way up to when your toddler is 40 inches tall.

When to stop using sleep sacks

When Should You Stop Using Sleep Sacks?

As long as your baby is staying at a comfortable and safe sleeping temperature, I don’t see any downside to using sleep sacks as your baby grows.

Sleep sacks are a great option when you have limited choices for safe, age-appropriate bedding.

The American Academy of Pediatrics recommends keeping all loose objects out of the crib, so your baby can’t sleep with a blanket until their first birthday, and even then they’re likely to just kick all the blankets off in the middle of the night.

Sleep sacks are a great alternative to loose blankets throughout all four seasons.

I usually recommend using sleep sacks until your baby is ready to transition to a toddler bed.

The bottom line is that sleep sacks are safe and they’re a great way to keep your little one cozy while they sleep. I hope this has helped you pick out some great sleep sack options for summer!

Amy Motroni
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