7 Nontoxic Sleep Sacks To Help Your Baby Sleep
The Good Trade editors endorse products we’ve personally researched, tested, and genuinely love. Learn more about our methodology and business model here.
We’re not just editors, we’re also moms who have spent years sourcing nontoxic and organic products for our own little ones. These are our favorite sleep sacks that are sustainable, soft, and safe.
Once your baby has outgrown the swaddle, you’ll want to invest in a few sleep sacks. These cozy nap- and sleeptime wearable blankets envelop your little caterpillar in a comforting cocoon, while keeping their arms free for rolling and moving around.
Many of the best sleep sack retailers prioritize high-quality, nontoxic, certified organic materials and dyes to create their products. And since your baby will spend so much time snoozing in them, you’ll want to carefully select the ones that will be gentle on baby’s sensitive skin.
What exactly is a sleep sack — and when should you use one?
Sleep sacks go by a number of names, including wearable blankets, sleep onesies, and sleep suits. Generally speaking, a sleep sack serves as an extra layer your baby wears over PJs, and is often zipped up with baby’s arms out free.These keep babies warm, but they also create a safer sleep environment by further securing them in their crib — after all, it’s difficult to climb out when you can’t get your legs out of the sleep sack!
Most babies should graduate from a swaddle around 3 or 4 months, or whenever they start rolling over, according to the American Academy of Pediatrics (AAP). These are a significantly safer alternative to loose blankets in the crib, which the AAP warns babies could get “tangled in.” That said, you want to avoid anything weighted; the AAP says those can put too much pressure on your baby’s chest and lungs.
What should you look for in a sleep sack?
You want a sleep sack that’s designed with both sustainability and functionality in mind. Below, these are the materials, certifications, and some nice-to-have features to consider while you’re shopping.
- Organic materials: The best nontoxic sleep sacks are made with 100% organic cotton. All of our favorite picks have this feature, except Monica + Andy’s 95% organic cotton sleep sack and Quince’s 95% bamboo viscose, which have 5% spandex for a bit more stretch.
- Global Organic Textile Standard (GOTS) certification: This nonprofit organization has set the global standard for organic textile and natural fiber production. Analyzing a company from sourcing materials to producing each item, it’s a comprehensive inspection to ensure social responsibility and fair labor conditions.
- OEKO-TEX Standard 100 certification: Brands earn this certification after garments — down to their zippers — are tested for more than 1,000 harmful substances and are considered “harmless to human health.”
- Fair Trade certification: Fairtrade International is a global nonprofit promoting fair wages and working conditions. Another extensive certification process, popular brands like Coyuchi have met the Fairtrade standards or sourced their products from a Fairtrade-certified supply chain.
- Two-way zipper: For faster overnight diaper changes, a two-way zipper is a gamechanger. With a zipper working both ways, you can zip from the bottom up and do a speedy diaper change — without needing to remove the entire sleep sack.
- Thermal Overall Grade (TOG) rating: While you don’t want a weighted sleep sack, the TOG rating shows the type of weather recommended for the sleep sack. If their sleep sacks come in various TOG ratings, brands will typically share the best season or temperature range for each item. For example, Quince says it’s best to use the 0.5 TOG sleep bag during the spring and summer months, to save the 2.5 TOG wearable blanket for fall and winter, and to stick with the 1.0 TOG option for all-season comfort.
Our criteria:
Our team has tested and researched dozens of baby brands and scoured thousands of customer reviews to find the best sleep sacks that are clean, safe, and functional, too. We regularly update this list with emerging options that meet the following criteria:
- ORGANIC & NONTOXIC | Each of these brands offers sleep sacks made from natural fibers like organic cotton, grown without synthetic pesticides, herbicides, and genetically modified organisms (GMOs). All use natural, nontoxic dyes, and are never treated with any harsh chemicals.
- BRAND ETHICS | We’ve selected brands that adhere to ethical and fair labor practices, ensuring that the people involved in the production of your goods are treated fairly and paid a living wage.
- DURABILITY | Organic and nontoxic baby gear is often durable and well-made, which can lead to longer-lasting pieces. We’ve selected brands we find ourselves passing down to younger siblings and our friends’ kids.
To create the best sleep environment for your baby, it starts with the foundation. Our editors have rounded up the best nontoxic cribs and organic crib mattresses for the ultimate nontoxic sleep setup.
1. Pehr
Best For | Wide variety of patterns
Materials | 100% organic muslin cotton
Price starting at | $60
Founded by two childhood best friends who were expecting their first babies at the same time, Pehr has consistently prioritized safe production practices. From their GOTS-certified organic muslin cotton to “sustainably sourced printing methods,” the dynamic duo of moms behind the brand have given parents peace of mind since 2011. The Canadian-based company’s sleep bags are available in 1.0 or 1.7 TOG, and they come in two sizes: 0-9 months and 9-18 months. As a bonus, their sustainably printed patterns are all adorable, though we’re partial to this aquatic-inspired option.
And for daytime wear, The Good Trade’s community manager Kate Arceo loves the brand’s heirloom-quality denim and corduroy clothing. “Pehr is the spot for pieces that are beautiful enough for family photos, durable enough for daycare (seriously, I’m sending our son to school in these cords every day until he outgrows them!), and nostalgic enough to pass on to future generations,” she wrote in her review.
Customer Review | “We love this sleep sack. Will only buy this brand for our baby’s sleep sacks moving forward! You can tell the quality is excellent right from the moment you open the package.” – Malia H. (Read more reviews.)
2. Coyuchi
Best For | Textured material
Materials | 100% organic cotton sateen
Price starting at | $98
Though they’re best known for bedding, Coyuchi deserves more praise for bringing their luxurious items into the baby space. The California-based brand launched in 1991 as the first brand selling 100% organic bedding, and with a clear mission to make products with organic materials, reduce waste, and protect their customers and the environment. For their snuggle sack, 100% organic cotton sateen fabric (grown and woven in India) is prepared with a similar embroidery to the brand’s bestselling quilt, making it a familiar, lightweight comfort for Coyuchi-obsessed families.
Our editors love Coyuchi’s home products, too. “I love the undyed look, with the multicolored thread embroidered throughout,” contributing editor Brianna Schubert shared after testing the brand’s popular quilt. “It’s so simple yet elegant and adds such a lovely warmth to the bed.”
The snuggle sacks are available in 0-6 months or 6-12 months, and they’re offered in a few colors and patterns. At nearly $100 per item, they’re significantly more expensive than the average sleep sack, but should last longer due to the high-quality materials.
3. Burt’s Bees
Best For | Affordable pieces
Materials | 100% organic cotton
Price starting at | $30
Burt’s Bees Baby started in 2012, with the intent to provide customers with more affordable organic cotton baby clothing. A trademark of the Burt’s Bees Product Company, they’ve delivered ever since, giving back to their community and getting certifications from GOTS, OEKO-TEX, and FSC. The company offers the Beekeeper line, a collection of wearable blankets made with 100% organic cotton. The most lightweight version is 0.5 TOG, and their 1.5 TOG is considered “medium-weight” and comprises a 100% organic cotton shell and 100% poly-fill for extra warmth in the colder months.
At just under $30 per Beekeeper, these are the most budget-friendly pick — but they’re not skimping on sustainability and give-back initiatives. They frequently partner with charities to donate to worthy causes, and at the time of publishing, they were promoting the “Little Heroes” collection. A collaboration with CURE Childhood Cancer, they shared their plan to help “fund life-saving pediatric cancer research and provide support to children and families facing cancer with a $10,000 donation.”
Customer Review | “Needed a lightweight sleep sack as the weather is warming up, and this is perfect! Lightweight, soft, just enough stretch in the fabric. Highly recommend!” – Michelle P. (Read more reviews.)
4. Quince
Best For | Multiple TOG and sizing options
Materials | 95% viscose from bamboo, 5% spandex
Price starting at | $35
Quince splashed onto the scene in 2020, and quickly won us over for affordable, ethically made products — including baby essentials. The brand’s OEKO-TEX certified bamboo viscose-spandex blend is used in their extensive collection of bamboo sleep bags. These wearable blankets have the biggest range for both TOG ratings and sizes. Choose from a 0.5, 1.0, or 2.5 TOG sleep bag, in sizes small, medium, or large. Though most options on our list go up to 12 or 18 months, the large Quince sleep bag can accommodate kids up to 41 inches or 39 pounds (around 3 years old).
The direct-to-consumer retailer has an alternative pick that’s ideal for older toddlers. The Sleep Bag Walker comes with leg openings, making it easier for your tot to move around while staying extra cozy. It’s available in three colors, the same TOG ratings as the original sleep bag, and sizes medium, large, or extra-large.
Customer Review | “Wish I had known about these sooner! Will not be going back! They are so soft and have held up so well after countless washes!” – Garkie (Read more reviews.)
5. Monica + Andy
Best For | Basics
Materials | 95% organic cotton, 5% spandex
Price starting at | $34
Monica + Andy say their company story began in the delivery room, with the arrival of co-founder Monica Royer’s newborn daughter. With a goal to dress her baby in the “softest, safest fabric available,” Royer and her business partners Andy Gunn (who’s also her brother!) and Brian Bloom officially launched the company in 2015. The company and its signature elephant icon have made its way into countless nursery closets, and their Organic Arms-Out Sleep Bag is no exception. The sleep sack material is 95% organic cotton and 5% spandex and GOTS certified, and it’s sold in three sizes: 3-6 months, 6-9 months, and 9-12 months. At this time, there are only two colorways offered. In the past, they’ve also allowed custom embroidery for those looking to add their baby’s name or monogram.
Though there’s limited options and inventory with Monica + Andy sleep sacks, happy customers rave about the quality and price point of their basic clothing and sleepwear. For $34 per sleep sack, this ranks among the most affordable picks.
Customer Review | “Not gonna lie, there is something about the fabric that makes me want to jump in one and cozy up for the night.” – Nadezhda (Read more reviews.)
6. Colored Organics
Best For | Newborn stage
Materials | 100% organic cotton
Price starting at | $35
Like so many companies we adore, Colored Organics was created by a mom. Founder Amanda was a mom of two when she disrupted the clothing industry with Colored Organics, sharing her hope to provide “honest, ethical, and absolutely adorable” children’s clothing.
While they don’t offer a traditional sleep sack, Colored Organics does make a kimono gown. Keep in mind that your little one will still require a swaddle to go over this gown, and it does not qualify as a standalone sleep sack. With sizes newborn and 0-3 months only, it’s an alternative to onesies for newborns. If you haven’t registered or purchased a swaddle yet, Colored Organics makes a number of swaddle blankets. (It might take some time to learn the proper swaddling method, but you’ll eventually get the hang of it! Otherwise, consider nabbing a sleep sack/swaddle hybrid, like this one from Halo.)
A heartwarming initiative for the company, Colored Organics highlights and supports a different organization each month. You can review their past charitable contributions on their website’s “Giving Back” page.
7. Maisonette
Best For | Multiple brands
Materials | 100% natural Indian cotton
Price starting at | $42
Maisonette is a hub for all things your baby might need, from toys to sleep sacks. You’ll find noteworthy brands such as Angel Dear (the softest bamboo viscose materials you’ll ever feel!), Bamboo Little, and Nellapima. Another top-notch brand you can shop at Maisonette is Malabar Baby, which creates their products with nontoxic dyes and hypoallergenic premium Indian cotton. Their sleep sacks are made with GOTS certified natural Indian cotton, and each one is handmade by artisans in India. Maisonette sells two types of Malabar sleep sacks, a lightweight option with a 0.6 TOG rating and cozier quilted style with a 2.2 TOG rating.
Malabar is a brand that warns that their products sell out frequently, which can be a challenge for devotees — but it’s a testament to their sustainability. They produce limited quantities a few times per year, in an effort to keep excess waste out of landfills.
Featured image is from Burt’s Bees
Blake Bakkila is a freelance writer and editor with eight years of experience covering topics including baby and parenting, food, health, pop culture, and interior design. In addition to The Good Trade, her work has appeared in the digital publications of Architectural Digest, Sunset, Good Housekeeping, and more. She highlighted the best, most game-changing baby and parenting products as the former senior commerce editor at What to Expect and BabyCenter, and she’s also held editorial positions at Good Housekeeping, Health, Real Simple, and People. Blake holds a bachelor’s in journalism from Northwestern University’s Medill School of Journalism. When she’s not typing, you can usually find her watching anything on Bravo, entertaining her son Rhode, and conducting field research on the best ice cream in Southern California.
