10 Best Baby Sleep Sacks Parents Approved for 2021

Sleep sacks are more than just adorable mini sleeping bags for your baby or toddler. Sleepsacks (also known as wearable blankets or sleep bags) are a safer alternative to loose blankets in the crib.

There is a wide selection of sleep sacks available, ranging from cotton, fleece, and wool to newborn-friendly picks and footed options for toddlers. We have compiled a list of our top picks for each age, stage, and sleeping environment so you can figure out what is best for your child.

So, which sleep sack should you choose for your child? We have got the best options for the best baby sleep sacks for every stage of your baby’s life right here.

1. Gunamuna gunaPOD Baby Sleep Sacks


Achieving a great night’s sleep shouldn’t be difficult, and changing a diaper should be a simple task. With the revolutionary WONDERZiP Diaper-Zipper, the Gunamuna gunaPOD Sack induces Comfort-Induced Sleep and makes diaper changes easier. The gunaPOD is more than simply a pad, it uniformly distributes weight to resemble your soothing hug. The gunaPOD Sack is a tiny (but safe) luxury comforter made with down-like material and a TOG of 2.6. Its only drawback is that it does not come in adult sizes.

If You live somewhere cold, you will need an extra warm sleep sack to keep your little one toasty warm.

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2. Kyte Baby 1.0 TOG Sleep Sleep Bag


As an alternative to blankets, sleep sacks can be wrapped around your infant to create a cozy enclosure with room for arms and legs to move freely. A blanket will not be able to cover your baby’s face if they are in a bag. These are constructed of bamboo rayon, which is lightweight and breathable. It feels silky and smooth against the skin, with a hint of stretch for enhanced comfort.

It’s also kind to the environment, as it’s ethically sourced and produced from sustainable bamboo. The sleeping bag zips in two directions: top-to-bottom and bottom-to-top, making it easier to change.

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3. Little Unicorn Cotton Muslin Sleep Bag


Sorry, but these Muslin Sleep Bags from Little Unicorn are so darn lovely. I like that the Muslin is incredibly breathable and cool, but it’s just 1.0 tog, so it’s still suitable for layering on a Spring or Autumn day!

Our sleep bags are a safe and fashionable alternative to blankets because they are lightweight, breathable, and feature artisan hand-painted prints. The top-to-bottom zipper makes changing diapers at night a breeze, and the machine-washable cotton muslin gets softer with each wash.

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4. Love to Dream Swaddle UP Original


This inventive hybrid is a great option for babies who don’t like the tightness of a traditional swaddle blanket but aren’t quite ready for a sleep sack. The Swaddle UP allows your child to sleep with their arms up, which is a natural position that also allows them to use their hands for self-soothing.

It’s smooth and breathable, easy to use, and, needless to say, makes every baby look even cuter than usual while wearing it. Unlike classical arms-out sleep sacks, which can be used well into toddlerhood, you’ll have to give this one up once the baby starts rolling over on his or her own.

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5. Baby Merlin’s Magic Sleepsuit Cotton Swaddle Transition Product


This sleepsuit may transform your child into the Stay Puft Marshmallow Man, but we promise the laughs will be worth it. Many babies struggle to adjust from the snugness and security of a traditional swaddle to the roominess of a sleep sack. The Merlin is the ideal middle ground. It’s soft enough to allow the baby some movement while also being heavy enough to suppress the startle reflex, allowing many babies to sleep longer and sounder.

When using the Merlin, there are two things you should keep in mind. First and foremost, it is warm. Instead of wearing heavy PJs underneath, dress baby in a short-sleeved bodysuit.

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6. Burt’s Bees Baby Beekeeper Organic Wearable Blanket


Baby sleep sacks are a safer alternative to blankets for newborns and infants. They are designed to lower the incidence of SIDS. GOTS-certified organic cotton with a breathable fabric to help reduce overheating.

If you value organic cotton, this wearable blanket from Burt’s Bees Baby is an excellent choice.

This sleep sack is made entirely of GOTS-certified organic cotton.

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7. Halo Sleepsack Swaddle (Cotton)


The HALO SleepSack Swaddle is a popular choice for a long-lasting swaddle with the option of having arms in or out. It has fail-safe Velcro wings that make it simple to wrap around and swaddle smaller babies who need more security, then adapts to an arms-out style for older babies who are starting to roll over or for little children who don’t appreciate the tighter swaddle. 

It’s made of mid-weight cotton and can be worn in a variety of temperatures.

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8. Nested Bean Zen Sack Classic


Occupational therapists have long used weighted blankets to help children and adults with sensory disorders sleep and relax, but the idea has only recently moved to the larger sleep industry—so it’s no surprise that there’s now a weighted blanket option for babies as well.

The weighted bag is filled with non-toxic beads and will not restrict your baby’s ability to move or even rollover. (It’s also safe to use in the washing machine.)


9. Woolino 4 Season Ultimate Baby Sleep Bag


Wool is an excellent four-season material. It keeps you warm in the winter and cools in the summer, and it naturally regulates your body temperature. This Merino wool sleep sack will keep your child at the perfect temperature all year long. It’s machine washable and comes in a universal size that adjusts to fit children aged two months to two years.

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10. Halo Sleepsack Wearable Blanket (Cotton)


This HALO sleep sack has it all: it’s easy to put on and take off, it washes and wears well, and it’s made of soft, comfy cotton. It’s an excellent choice for replacing loose blankets in the crib while still providing your child with a sense of security. There are numerous color and size options available, as well as an inverted zipper that opens and closes from the bottom for easy diaper changes.

When the temperature drops, are you looking for a warmer option? There’s also a warm microfleece option.

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It’s natural to want to keep babies cozy and warm and there is no better way to keep them that way than by owning a Baby Sleep Sack. We hope that through this, we can help you decide on what Baby Sleep Sack to buy for your baby.

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