The Best Baby Sleep Sacks 2023, Tried and Tested

The transition out of a swaddle and into a sleep sack can be as hard on parents as it is on infants. Cue the middle of the night Amazon panic purchase in the hopes you’ve finally found “the one” that will get your night owl to snooze longer than a two-hour stretch, ugh. Speaking of which, here's all the free stuff from Amazon you can get if you are in midnight purchase mode.

Because babies under a year old should never have blankets, a sleep sack—which is essentially a wearable blanket—is the next best thing and a great sleep cue for your little one, according to baby and toddler sleep expert, Carolynne Harvey, founder of Dream Baby Sleep.

“Zipping your baby into a sleep sack lets them know that it's time to snooze and keeps them warm and cozy in a safe way,” she says. While choosing the best baby sleep sacks is certainly a personal choice, there are a few factors to consider before adding to cart.

• Fit: Just like clothing, sleep sacks come in a variety of sizes (0-6M, 6-12M, etc.) “The most important thing is to make sure it fits,” says Harvey. “You don't want loose fabric, especially around your baby's neck and chest.” A large size range is another added perk. “If you find a sleep sack that works great for your child, they can wear it up to age two and even beyond,” notes Harvey! “It's no fun when you and your baby fall in love with a sleep product that they then size out of a few months later.” Amen.
• Warmth: The ideal temperature for your baby’s room should be between 68-72 degrees Fahrenheit. “If you know your child's room runs on the colder side of that, you may want a thicker sleep sack; if it's on the warmer side, you may want a thinner one,” says Harvey. Also, consider what your baby is typically dressed in underneath. Sleep sacks with lower TOGs can be a great investment for summer, whereas you may want a higher TOG sack for the colder months.
• Fabric: While Harvey prefers natural fabrics like wool, cotton, muslin and bamboo over synthetic ones, there’s really no right or wrong answer here. “The best way to choose a fabric would be to note whether your baby has sensitive skin and how your house generally runs (hot or cold). The sleep sack doesn't really make direct contact with your baby's skin though, so don't stress about this too much!”
• Design: Safety first! The American Academy of Pediatrics warns against weighted sleep sacks, so it's best to reduce the risk. “These can restrict a baby's movement, and should not be used,” cautions Harvey. Other design features to consider are softness and ease of use, especially for those middle-of-the-night wakings—two-way zippers, FTW! 

The best baby sleep sacks 2023

• Best overall: HALO Sleepsack 100% Cotton Muslin Wearable Blanket 
• Best budget: Burt's Bees Baby Unisex-Baby Beekeeper Wearable Blanket 
• Best luxury: Woolino 4 Season Ultimate Baby Sleep Bag Sack 
• Best bamboo: Kyte Baby Unisex Bamboo Rayon Sleeping Bag 
• Best design: Loulou Lollipop Tencel 1.0 TOG Sleep Bag 
• Best for toddlers: Tealbea Dreamsuit 
• Best trendy: Copper Pearl Vance Sleep Bag 
• Easiest to use: Gunamuna 1.0 TOG Sleep Bag 

Best overall

HALO Sleepsack 100% Cotton Muslin Wearable Blanket 

With over 6,000 rave reviews and an impressive 4.8-star average on Amazon, it’s no surprise HALO, the OG of sleep sacks, gets our vote for best overall—the brand’s cult-fave and award-winning wearable blankets are also the leading choice of hospitals nationwide, which means parents can trust their babe is safe and snug at bedtime.

Parents will appreciate that it comes in sizes starting from birth all the way up to two years, so if your little loves it there’s no tough transition out—just size up. Did we mention it’s super roomy too, promoting proper hip development? The lightweight, 100% cotton muslin fabric is super soft, gentle on babe’s skin and great for warmer climates or families who just don’t like to crank the AC all night.

Pros

• Made of lightweight 100% cotton muslin for breathability + to keep your little one cool
• Inverted zipper for easy diaper changes
• Hip-healthy design
• Tons of colors and prints to choose from
• #1 choice of hospitals
• Very reasonably priced

Cons

• Some parents report issues with the zipper
• 0.5 TOG rating so may not be warm enough if you keep your house super cold

Burt's Bees Baby Organic Unisex-Baby Beekeeper Wearable Blanket 

There’s a lot of trial and error when it comes to finding baby gear your child will personally like. So a soft, sustainable sleep sack that won’t break the bank is certainly at the top of our list. This bestselling Burt’s Bees wearable blanket is under $20, has over 27,000 positive ratings on Amazon and boasts an almost-perfect 4.8 out of 5 stars average. 

It’s thoughtfully designed with a zipper that opens from the bottom for fuss-free diaper changes, along with an interior zipper guard to protect delicate skin and a handy zipper pocket to keep your curious toddler from taking it off—because they will try. Made from 100% GOTS-certified organic cotton (which is ideal for sensitive skin), you can rest assured your mini is dressed in the best and won’t overheat at night.

Whether you’re into classic stripes or fresh floral prints, there’s an adorable design for every aesthetic. Need something a little warmer? The Beekeeper also comes in a medium-weight 1.5 TOG rating.

Pros

• 100% GOTS-certified organic cotton for extra breathability
• Comes in a variety of fun prints and patterns
• Under $20
• Machine washable and dryer-friendly
• Zipper guard and cover
• Sustainably made 
• Free of synthetic pesticides & chemicals

Cons

• Zipper can be stubborn at times
• Super lightweight 0.5 TOG rating so not great for cold households

Woolino 4 Season Ultimate Baby Sleep Bag Sack 

There’s honestly SO much to love about this top-rated (4.8-star average) Woolino merino wool sleep sack, which yes, is 100% worth the splurge. Not only does it come in one universal size, meaning from the age of two months to two years you’ll never have to buy a new one (score!).

It also works year-round thanks to its magical merino wool temperature-regulating properties that warm your little one up when it’s cold and cools them off when it’s not. The dream, right? As if that weren’t enough, it features adjustable double shoulder snaps to achieve the perfect fit on your infant, as well as closable seat-belt slots so you can transfer sleeping beauty from bed to stroller—or vice versa.

There are no itchy tags, the zipper is sewn into the lining so it won’t scratch your mini and it even comes with a nursery thermometer and handy-dandy guide for properly dressing your babe for the best night’s sleep. Plus, it’s so soft and snuggly.

Pros

• Adjustable underarm snaps for the perfect fit
• Temperature-regulating to ensure your babe is always comfy-cozy 
• One size fits all for babe 2M to 2Y
• Promotes healthy hip development
• Closable seat-belt slots so you transfer without waking them
• Two-way side zipper for maximum versatility
• GOTS-certified organic cotton outer

Cons

• Expensive but also one-and-done
• Recommended to use wool or mild detergent, as well as hang dry, which may be a con for some families

Kyte Baby Unisex Bamboo Rayon Sleeping Bag 

So good they even come in adult sizes—seriously! As a certified infant and toddler sleep consultant, Harvey loves the Kyte Baby sleep sacks “Because they’re available in different thicknesses for each season, ensuring your baby is always at a comfortable temperature, and they're made of buttery soft, stretchy bamboo rayon.”

Speaking of stretch, they’re designed to grow with your baby so you won’t have to splurge for a new one every few months. It keeps arms free and baby warm without worry.

Aside from the fact that you’ll want one for yourself (get it, girl), these super popular sleep sacks are also premium quality, featuring quilting inside to ensure the inner lining never bunches up and natural temperature-regulating properties to help keep your babe cool and encourage them to sleep through the night.

Pros

• Naturally hypoallergenic for sensitive skin
• Incredibly soft
• Regulates temperature/keeps kids cool
• Available in a bunch of beautiful colors
• Super stretchy to grow with them
• Double zipper and zipper flap

Cons

• Can’t dry in dryer, which adds to the time it takes to launder the piece

Loulou Lollipop Tencel 1.0 TOG Sleep Bag 

We’re quite frankly obsessed with these fashion-forward and sustainable Loulou Lollipop sleep bags that come in the cutest prints ever. Unlike most of the brands on this list, these super roomy sleep sacks are available in sizes 0 to 6M, 6 to 18M and 18M to 36M, which means your little can rock ‘em for longer before having to size up.

A clever and oversized (great for dad's hands!) two-way zipper opens all the way around the bottom making unexpected late-night diaper changes easy-peasy—honestly, such a simple but thoughtful touch for all us sleep-deprived parents. Manufactured at an OEKO-TEX Standard 100 certified factory, you can rest easy knowing your little one isn’t being exposed to any harmful chemicals. Each sleep sack is insulated with light Dupon Sorona to keep your kiddo extra cozy while they catch some Zzzs. 

If you like a 1.0 tog and are considering a weighted version, check out this Dreamland Baby sleep sack.

Pros

• Sustainable
• Super roomy to grow with your little one
• Machine washable on delicate and dryer-friendly
• Free of harmful chemicals
• Oversized, two-way zipper
• Stylish prints

Cons

• Comes with a warning label that can irritate baby’s neck if not removed properly, which is fairly easy to do
• Slightly expensive

Copper Pearl Vance Sleep Bag 

Over 750+ reviews and a 4.9-star rating = a must-have, obvi! Your little one will be all smiles in this super cool, buttery-soft Vance sleep sack that’s fun, fresh and so right now. Made from a premium knit, breathable fabric, this bag features three luxe layers and an extra plush fill to ensure your little one sleeps like an adult and, you know, not a baby who wakes up every few hours.

It has the perfect amount of stretch and with a 1.7 TOG rating, it’s warm enough—but not too warm—to keep your baby comfortable year-round. The convenient wraparound zipper aids in easy diaper changes and the unique zipper cover protects your kiddo’s skin. Bonus: you can toss them in the wash on cold and tumble dry on low heat. 

We think it's the best sleep sack for social media-ready parents willing to snap adorable pictures on the crib mattress even when baby is fast asleep.

Pros

• Super fun, modern print
• Buttery-soft, breathable fabric
• Wraparound zipper and zipper cover
• Machine washable and dryer-friendly.
• Stretchy

Cons

• Only available in prints, no solid color options

Tealbea Dreamsuit 

This premium bamboo and organic Tealbea cotton sleep sack was made for walking so if your toddler is already in a big kid bed or just constantly tripping over a traditional sleep bag, it may be time to upgrade them. Honestly, they’ll probably want to wear it even when they’re not snoozing.

The fabric is buttery soft, breathable and helps regulate your little one’s temperature, while also wicking moisture away. With a 1.5 TOG rating, it’s perfect for cooler temps or parents who love to sleep with the AC on blast. We love that it's warm enough for them to sleep blanket-free on a toddler mattress or toddler travel bed.

It's one of the best toddler sleep sacks we've ever seen, and an easy piece for any parent to fall in love with. Fair warning though, it makes climbing out of their baby crib easier if you have a little escape artist. This footed sleep bag comes in sizes starting at 12M up to 4Y so it’s got them covered all through toddlerhood. 

Pros

• Hypoallergenic for sensitive skin
• Temperature-regulating 
• Wicks away moisture
• Sizes up to four years
• Premium bamboo and organic cotton fabric
• Free of harmful chemicals

Cons

• It’s footed so toddlers can climb out of the crib easier

Gunamuna 1.0 TOG Sleep Bag 

This luxe sleep sack is basically a wearable down duvet for your little one and a total dream for diaper changes thanks to the genius wonderzip diaper-zipper that lets you open the sack completely at the bottom. It also comes with clever shoulder snaps so you can sneak a sleeping baby into it or get ‘em out quickly when they’re crying.

Parents rave about the roominess of the sack, giving their baby the freedom to roll and move with ease in the crib. Another feature reviewers love is how ridiculously soft and comfortable they are, inducing a longer night’s sleep.

With a 1.0 TOG rating, it’s light, but still cozy enough to keep your babe warm. There are a lot of beautiful earthy colors and modern prints to choose from. 

Pros

• Convenient shoulder snaps
• Modern designs and colors
• Certified OEKO-TEX Standard 100 so free of toxic chemicals and irritants
• Roomy fit so baby can move freely
• Made of super soft bamboo viscose and spandex blend
• Breathable, moisture-wicking and hypoallergenic

Cons

• Air drying is recommended, which means you’ll probably need a backup