A baby sleep sack is the perfect sleeping essential that will give your bundle of joy the best sleep possible.
As a mommy of two babies, seeing them look so snug and cozy in their sleep sacks makes me want to get one for myself!
These great baby products are lifesavers when putting your little ones to sleep. Going for organic options makes them even better because you don’t have to worry about toxic chemicals from harming your precious baby!
In this list, we picked the best organic options that you can find in the market today.
5 Best Organic Baby Sleep Sacks
1. Burt’s Bees Baby Wearable Blanket
There are a lot of things we love about this GOTS certified organic cotton sleep sack, and with over 6400 reviews on Amazon, thousands of parents love it too!
This best selling wearable blanket is our pick because of its great designs, comfort, breathability, and certifications! We highly recommend this if you’re looking for a good quality wearable blanket.
This product is made of GOTS certified organic cotton, so it’s free from any toxic chemicals that can harm your baby. It’s also certified by Amazon for being “Climate Pledge Friendly” which means it’s manufactured and packaged sustainably!
It also has a zipper closure that starts from the bottom, giving you access for easy diaper changes, so that’s a plus!
This product is hard not to love, and for the moms reading this, you’ll get your best sleep knowing that your baby is also getting their best sleep from this certified organic option!
- GOTS certified organic cotton is great for sensitive skin
- High-quality finish
- Variety of designs
- Limited size options might not work for all
2. Woolino 4 Season Baby Sleep Bag
This sleep sack is made of high-quality Australian merino wool on the inside, and 100% GOTS certified organic cotton on the outside.
It’s luxuriously soft, hypoallergenic, and regulates temperature really well! It’s called a 4 season baby sleep bag for a reason!
What makes this product great is its one-size-fits-all design. You can adjust the button snaps for the best fit so it grows alongside your baby.
It also has a two-way zipper on the side making clothes or diaper changes easier for you.
You have 12 wonderful designs to choose from, but whatever design you go for, you won’t be disappointed with this high-quality product!
- High-quality materials work great for all situations
- One size works for ages 2 months to 2 years
- Variety of designs
- Wool is naturally fire-resistant
3. Aden + Anais Classic Muslin Sleeping Bag
Muslin is a great organic cotton fabric that’s lightweight, breathable, and perfect for the summer. When it comes to muslin products, Aden + Anais is a top player.
Their classic muslin sleeping bag is a great product that any mom should have in her inventory. This 100% organic muslin sleep sack will keep your baby cool and comfy!
This product features a bottom-to-top zipper design for easy diaper changes. Since it’s made out of organic muslin, it’ll also get softer the more you wash it, so that’s great!
What makes this product stand out is its different sizes and designs you can choose from. You won’t have any problem finding the best one for your bundle of joy!
- Fabric is great for breathability
- Variety of sizes and designs
- Lovely packaging makes it a great gift option
- Some mothers found the zipper easily breakable
4. Merino Kids Baby Sleep Bag
This wool baby sleeping bag is similar to Woolino, and it’s another great option you can consider.
Ethically sourced from Australia and New Zealand, this merino wool is high-quality, itch-free, allergy-free, and regulates body temperature too!
You can use this all-year-round and it’ll work great for any situation! Being 100% GOTS certified, you don’t have to worry about any toxic chemicals harming your baby.
Merino Kids claims that this is the first sleep bag in the world to pass the strict standards of BSI UK for baby sleep bag safety, so that’s great!
This is pricier compared to Woolino’s and has fewer design choices, but it’s still one of the best wool sleep sacks that you can find in the market today. This product will not disappoint!
- High-quality wool fabric
- One size works for ages 0-2 years
- Two safety certifications
- Limited design choices
5. Halo Sleepsack Organic
Halo is a great brand that’s popular for their organic swaddle blanket, but they also have an organic sleep sack that’s just as great.
This sleep sack is made out of 100% organic cotton and does a great job of warming your baby without sacrificing breathability!
This product’s cotton fabric has a double-knit construction making it soft, stretchy, and feel wonderful on your baby’s skin.
It’s also recognized by the International Hip Dysplasia Institute for being hip-healthy! On top of that, hospital nurseries also promote this product as a great “safe sleep” option.
Another great feature is that it has a two-way zipper design, making diaper changes easier for you. This product checks all boxes for a great and reliable product!
- Finish of the fabric feels great on the skin
- Recognized by IHDI and hospital nurseries
- Limited size options might not work for you
What is a Sleep Sack?
A sleep sack is a one-piece wearable blanket that works similarly to a swaddle. The main difference is that the design gives more freedom because your baby’s arms won’t be secured.
Sleep sacks are essential replacements for loose blankets for your baby. Loose items can be sleeping hazards for newborns, so sleep sacks are the perfect solution.
Your baby will be cozy and warm, and you don’t have to worry about the dangers that a loose blanket can give. You should definitely add this to your Newborn Baby Prep Checklist.
Are Sleep Sacks Safe?
For any baby product, the first thing parents should ask is if they’re safe for their little one. When it comes to sleep sacks, there are a couple of things you should keep in mind before buying one.
Organic is always best when it comes to the safety of your baby! Organic sleep sacks don’t have harmful chemicals that conventional sleep sacks might have.
Some of the harmful chemicals you should look out for are dyes, flame retardants, bleach, and insecticides.
There are hundreds of other toxic substances that you should be aware of, but keeping track of all of them can be a hassle.
Luckily for us, these products can be certified to be free from any of these toxic chemicals!
The Global Organic Textile Standard (GOTS) is a manufacturing certificate that makes safety standards for products.
When you see products with this certification, that means they went through rigorous testing protocols to meet all environmental, toxicological, and safety standards. GOTS-certified products are 100% safe for your baby!
Not all organic products have a GOTS certification, but that doesn’t necessarily mean they’re unsafe.
If you’re interested in buying an organic product that isn’t GOTS certified, just make sure to check if you’re buying from a reliable brand that’s been tried and tested by a lot of parents!
Although as much as possible, going for GOTS certified organic products are best.
Sleeping sacks are great baby products that help keep your little one warm and ready to sleep.
Some of the features you should look for are sturdy zippers, fabric breathability, and mobility.
For zippers, make sure they have guards and are covered up by the fabric when you zip them. It also helps if the zipper is two-way or starts from the bottom instead of the top.
These zippers will give you quick access for easy diaper changes.
All of the zipper choices in this list are either two-way or bottom-to-top, so that’s a feature you can already check off.
Since babies can’t regulate their body temperatures well like adults, they’ll have a harder time adjusting to the environment. It’s important to choose the right fabric!
For hotter temperatures, it’s better to go for a muslin cotton sleeping sack. Muslin is organic cotton that has an open-weave design. This makes it very breathable, lightweight, and allows a lot of airflow. This is the perfect choice for hotter climates.
For colder environments, regular organic cotton or wool would work better at keeping your baby warm. Since these don’t have an open-weave design like muslin, they can protect your baby better from the cold.
Although, they still provide enough breathability to avoid overheating, so that’s great!
Whatever fabric you go for, always keep in mind what your baby is wearing underneath.
If they’re wearing thick pajamas or onesies, then a muslin sleep sack will be enough. Although, if they’re only in their diapers or only has a shirt on, then a regular cotton or wool fabric will probably be best.
By mobility, we mean how much room the sleep sack can give for your baby’s arms and legs.
Some sleep sacks come with built-in sleeves, but all of the products we listed down are sleeveless. This makes it work well for whatever your baby is wearing underneath.
It also gives more freedom for your baby’s arms which is great!
For the legs, a sleep sack with a lot of legroom is a must. Tight leg spaces will force your baby’s legs to stretch and straighten out. This will interfere with proper hip development and can cause hip dysplasia for your baby.
When picking a sleep sack for your little one, make sure that you pick the right size. A sleep sack that’s too small can lead to hip problems, while a sleep sack that’s too large might not feel cozy for your baby.
Health and Safety
Sleep sacks are generally safe for your baby, so you don’t have to worry much. Although, you should keep in mind that sleep sacks aren’t best for newborns.
Newborns have a startle reflex that can disrupt their sleep, so swaddles aim to secure their arms inside and avoid this from happening.
Sleepsacks, on the other hand, are better for older and bigger babies who can’t stand the tightness of swaddles.
You also don’t have to worry about the startle reflex because they would already outgrow it when they’re 3-6 months old!
Sudden Infant Death Syndrome
Sleep sacks are also essential replacements for loose blankets to keep your baby warm when they sleep.
Loose items around your baby’s bassinet or crib are linked to Sudden Infant Death Syndrome (SIDS).
Even though this is a rare occurrence, you want to reduce the chances of it happening as much as you can.
SIDS often occurs when your baby is asleep, so having the safest sleeping environment is a top priority!
These cute sack sleepers do more than just keep your bundle of joy comfy and warm!
When to Stop Using A Sleep Sack
What’s great about sleep sacks is that, as long as they still fit, you can use them for your baby as long as you want! Observe how your baby reacts to the sleep sack and see if they’re still comfortable in them.
If at some point they already get squirmy and feel restricted with the largest size possible, then it’s time to move on from it.
Overall, the Burt’s Bees Baby Wearable Blanket is our pick for the best organic sleep sack, and we’re sure that thousands of other parents would agree with us! From manufacturing until the end-product, this product does everything well, and it’s affordable too!
We also strongly recommend the Woolino 4 Season Baby Sleep Bag because of its versatility and luxurious feel. It’s a cheaper wool option than Merino, but still delivers topnotch quality that’s great all year long!
The Aden + Anais Classic Muslin Sleeping Bag is a classic that we also highly recommend. A great muslin wearable blanket is the perfect summertime baby sleepwear essential. All parents should have at least one of these ready to use when the time comes!
For more baby items, you can browse through our Baby Diaper Bag Must-Haves article.
July 22, 2021 – updated interlinking, updated external links