Best baby sleep sacks

When we asked BabyCenter editors what sleep sacks they used at home, many attested to the excellence of Halo SleepSacks. One of the best things about Halo's wearable blankets is that they are available in several fabrics with varying degrees of warmth, so you can find one that works best for your nursery's temperature. 

Shelley Gingrich, BabyCenter's Executive Director, Brand Solutions, was a fan of cotton knit (0.5 tog value), which she calls "not too heavy, not too light," while Lisafé Carreon, Senior Product Manager says her favorite was the microfleece (1.0 tog value, which keeps her daughter warm on colder nights. The SleepSack also comes in a cotton muslin (0.5), a fuzzy "velboa" (1.5), and IntelliThread, a fabric Halo introduced in 2022 which promises to help keep your baby's body temperature steady with thermo-regulating fabric. 

The Halo SleepSacks also have an exceptionally easy-to-operate zipper that opens and closes from either the top or bottom (particularly handy for the newborn months when nighttime changes are frequent, says Shelley). Lisafé adds that the fabric doesn't get caught in the zipper, even when being used in the middle of the night by a sleepy parent. 

They wash and wear well, too: Several BabyCenter editors, including Shelley, said they bought them for their first child and passed them down to their second, which is impressive considering how often parents use and wash sleep sacks. 

Heads up
The Ideal Temp swaddles can run slightly bigger than other swaddles.

Parents say
"My son is 14 months and we put him in a Halo sleep sack.... Right now during hot weather, I'm using the muslin one so it's lighter. He heats up easily."

"I use fleece Halo… My little one gets cold at night so I’ve still kept him in the fleece for now even though it’s warm in Alabama and we have the air conditioner turned on. I have a muslin one too but since he still wakes with his hands like little ice cubes, I’ll just leave him in the fleece for now."

"We started using Halo cotton sleep sacks. My LO has always hated to be swaddled with her arms in, so the sleep sack was an easy transition."

Specs

• Size range: Newborn-XL, fits 19-40 inches and 5-36 pounds
• Fabric: Cotton, cotton muslin, organic cotton, microfleece, velboa, or polyester/rayon with IntelliThread
• Tog value: 0.5-1.5
• Color options: 64
   

At $50 and up, Kyte’s sleep sacks are more expensive than perfectly serviceable alternatives. And yet, BabyCenter Community members and editors alike love them. "They just feel so soft and snuggly," says BabyCenter's Senior Director of Strategy and Growth Robin Hilmantel, who has two that she's used for years with both her kids. 

Kyte also offers sleep sacks with different levels of warmth: 0.5 tog for warm temperatures, 1.0 for comfortable temperatures, 2.5 for cold conditions. Jamison Hermann, Senior Producer for Everyday Health Group, and Robin each owned sleep bags with different tog ratings for different times of year. Kyte's sleep sacks have a high-quality zipper that runs all the way across the sleep sacks' bottom and one side; Jamison said this made it easy to put on and take off the wearable blanket, and also aided in middle-of-the-night diaper changes. 

Cleaning the Kyte sleep bag may not be as simple, as the brand recommends hanging or lying the sleep bags flat to dry. Jamison says this was not a big deal but notes "it's helpful to have more than one so you don't accidentally end up with a wet sleep bag when you need one." Robin, however, put her Kyte sleep bags in the dryer with no problems. 

Heads up
There's no newborn size. 

Parents say
"I just bought 3 Kyte Baby and I loveeee them! They are super soft & come longer than the Burt’s bees (the other ones we use)!"

"I dry my Kyte sleep sack in the dryer with no issue… going on two years with this sleep sack."

"We only use the Kyte one since buying it finally! Worth the money. It is so soft and way more blanket like than some of the ones I’ve tried. My baby loves it!"

"I love Kyte! The fabric is so soft."

"My son is 18 pounds and he fits small just fine with lots of room to grow."

"I love Kyte’s sleep sacks. They are pricey, but incredibly soft."

"Halo sleep sacks are nice, but I also love the Kyte baby ones that everyone raves about! Pay attention to the tog rating on the sleep sack you get and that will let you know what sleepsack you need based on temperatures. My little one also sleeps warm, so I usually just get the lowest grade one (0.5 tog), and have the heater on and use warmer than normal pjs if necessary that night. It makes it easier too because then my lo can use the sleep sack year round."

Specs

• Size range: S-L, fits 22-40 inches and 14-42 pounds
• Fabric: Bamboo rayon, spandex, polyester
• Tog value: 0.5-1.5
• Color options: 64

Some people see the word wool and think itchy, but Woolino's sleep bags are made of superfine merino wool knit, which feels silky and soft. But what’s better than the sleep sack’s material is its longevity. Woolino sleep bags have snaps under the arms that can be adjusted as your child grows, and the "Universal" size is long enough that your baby can wear it up to age 2, with room to spare.

Jeanne Beacom, BabyCenter's Senior Campaign Reporting Manager, can attest to its longevity. She has used the Woolino for over a year with great success and plans to keep using it. She’s even bought the version sized for children age 2-4. There's also a big kid version for ages 4-6, which parents of older children appreciate, since many sleep bags are not available above a size 2. 

The sleep bag does have one downside: Woolino recommends hanging to dry, or tumble drying on a "no heat" or "air dry" setting. Jeanne says her mom accidentally dried one in her dryer on a standard setting, and it shrank slightly, but she was able to stretch it out to its regular size the next time it was wet. 

Heads up
The price is jaw-dropping. 

Parents say
"We've used a Woolino sleep sack since our little one was 8 months old. I highly recommend it: baby doesn’t get too hot or too cold + he can wear all the seasons."

"We use Woolino for naps and bedtime! My LO is 10 months old and we’ve been using it since 4 months with no issues with sweating or anything else."

"My Bub is sweating up a storm in her light cotton sack for naps. I tried her in her Woolino yesterday and dropped the temp slightly and she slept a little longer and came out dry."

"A friend recommended Woolino and while it’s pricey, we love it. The merino wool works in all temps and it’s sized to last until our little one is two, so overall it’s been worth the cost." 

Specs

• Size range: Universal-4/6 years fits 23-47 inches, and 10-48.5 pounds 
• Fabric: Wool, cotton
• Tog value: Woolino does not tog rate its products
• Color options: 17

If your baby gets sweaty in warmer weather or just sleeps hot year-round, you'll need to dial back the layers come bedtime. This may mean putting your baby in a soft and breathable sleep sack like this one from Burt's Bees Baby, made of 100 percent organic cotton knit. 

The difference between Burt's Bees wearable blankets and competitors' is clear the moment you touch them: Burt's Bees material is outrageously soft, high-quality fabric that feels amazing. Parents also like the heavy-duty front zipper, which has an interior zipper guard to keep it from snagging on material, so you won't be fighting it for nighttime diaper changes. This wearable blanket comes in a number of unique, beautiful colors and patterns, giving you plenty of options. 

Heads up
We wish the zipper opened from the top as well as the bottom. 

Parents say
"I love Burt's Bees. Not too heavy and very soft."

"We like Burt's Bees cotton sleep sack. It's not too heavy and the arms are out."

"I recently tried the Burt's Bees sleep sack and absolutely love it! I'm used to the Halo sleep sack but prefer the softness of the Burt's Bees."

Specs

• Size range: S-L fits 23-35 inches, and 10-28 pounds 
• Fabric: Cotton
• Tog value: 0.5
• Color options: 20
   

Made of thick, fuzzy, soft fleece, Hudson Baby’s sleep bag is ultimate coziness for cooler weather. "Hudson baby sleep sacks are like plush blankies!" says one BabyCenter Community member. Parents who live in cooler climates or have a nursery on the colder side agree that these warm and yet inexpensive sleep sacks are great for bedtime. They come in two versions, one with sleeves and one without, though the sleeveless version is more popular.

Parents also like the sturdy zipper on the front of these sleepers, which they say moves up and down smoothly without snagging, and has a fabric guard at the top to keep the zipper pull from digging into your baby's skin. And with an impressive 79 different colors and patterns to choose from, you'll have fun picking out your favorite. 

Heads up
The zipper opens top-to-bottom; we wish it were two-way. 

Parents say
"I like that they're long sleeve, so we just put the baby either in a onesie or just his diaper underneath, or in the winter we can layer…. Cheaper option than most too."

"I love the Hudson Baby plush sleep sacks. They keep my baby warm all night."

"Hudson Baby is cheap as heck and no less good than my other sleep sacks."

Specs

• Size range: 0/6-18/24 months, fits 21.5-32.5 inches, and 8-27.5 pounds 
• Fabric: Polyester
• Tog value: Hudson Baby does not tog rate its products
• Color options: 79