aden + anais Classic Sleeping Bag

Last updated date: July 28, 2019

DWYM Score

7.6

aden + anais Classic Sleeping Bag

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We looked at the top Sleep Sacks and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Sleep Sack you should buy.

Editor's Note March 29, 2021:
Checkout The Best Sleep Sack for a detailed review of all the top sleep sacks.

Overall Take


In our analysis of 56 expert reviews, the aden + anais aden + anais Classic Sleeping Bag placed 12th when we looked at the top 12 products in the category. For the full ranking, see below.

From The Manufacturer

100% cotton Imported. SAFE AND COZY DESIGN- 1 pre-washed sleep sack; wearable blankets create a safe sleeping environment for your baby; eliminating the danger of loose blankets; TOG rating 1.0. SOFT AND BREATHABLE- Made with two layers of lightweight and ultra-soft 100% cotton muslin; it is exceptionally breathable for optimal airflow; reducing your baby's risk of overheating and ensuring comfortable sleep; Sleeveless design reduces the risk of overheating. BABY FRIENDLY- Unzips from the bottom for easy diaper changes. Generous sack design allows room for kicking; but cannot be kicked off so baby stays warm all night. PREMIUM- muslin fabric is ultra-soft and features a durable weave; it gets softer and maintains its original shape with each wash and wear; Use over regular sleepwear to take the place of loose blankets. Size- large; 22-28lbs; 30'' - 34'' inches (height of child).

Expert Reviews

Expert Summarized Score

8.0
9 expert reviews

User Summarized Score

6.8
311 user reviews

What experts liked

I really love my Cozy Sleeping Bag. The design in fabulous. The print is adorable. And the fabric is so soft and easy to clean. If you are in the market for a sleep sack for your baby, I highly recommend the Cozy Sleeping Bag from Aden + Anais.
- Parenting Patch
We like that the Aden + Anais Classic Sleeping Bag give’s your baby comfort and safety without having to worry about the dangers of overheating or becoming a hazard like traditional loose blankets.
- Child Safety Experts
It’s super soft, lightweight and made of 100% cotton muslin, which means that it breathes and allows my baby to sleep comfortably without having to use separate blankets.
- Pregnancy Magazine
I love the fabric and the functionality that comes with the features of the sleepsack.
- The Simple Parent
I was also very impressed at how well the sleeping bag was crafted. I noticed there was double stitching around every seam and border on the sleeping bag. The zipper was also sewn in extremely well and there were no gaps left open around the bottom of the zipper for little toes to poke out of.
- Mommy Living The Life of Riley
There's no need to stress over loose blankets in the cot with their breathable classic sleeping bag. It's impossible for little legs to kick off, the wearable blanket slips over our baby's pj's and zips open from the bottom, making stealth night time changes possible and stress free.
- Chic Geek Diary
The sleeping bag is super soft! It comes out of the package soft enough to be used immediately but the more you wash it the better it gets! You can rest easy knowing that your baby is only having the gentlest fabrics touching him or her during the night.
- Mom Unleashed
September 6, 2011 | Full review
Ideal for warmer climates and babies who get hot easy.
- Cozy Stream
January 15, 2018 | Full review
Aden + anais sent us one of their sleeping bags and it is perfect for these winter nights. It is made from their classic muslins with a polyester filling and come in a choice of thickness, this one being a 2.5 tog.
- The Mummy Adventure
January 15, 2018 | Full review

What experts didn't like

The Cozy Sleeping Bag retails for $45, which I consider priced slightly higher than other sleep sacks on the market.
- Parenting Patch
If you are swaddling your baby, the sleeping bag will only be useful for a relatively short few months (between when your baby no longer stays swaddled, and when they outgrow the sleeping bag).
- Child Safety Experts
The only problem that I noticed with the sleeping bag is that the neck hole is quite large. I don't really understand the reasoning behind this because the sleeping bag opens in the front and is zipped onto the child.
- Mommy Living The Life of Riley
Zipper is small and tears from fabric. This can be unsafe as the bag may bunch and twist, so make sure you check it occasionally for small tears at the seams
- Cozy Stream
January 15, 2018 | Full review

Our Expert Consultant

Kate Desmond 
Parenting Pro and Safe-Sleep Expert

Kate Desmond is a writer and infant safe-sleep expert. She has spent the last eight years working as the marketing director for Charlie’s Kids Foundation, a nonprofit that aims to educate families about SIDS and safe sleep. In that role, she travels around the country learning and educating caregivers and providers on the latest and greatest safe-sleep information to prevent infant death.

As mom to two elementary-aged daughters, she spends hours researching the best and safest products for her own kids. She is quick to get in the weeds with other mamas, and uses humor to cope with parenting woes from potty-training to teaching kids to read. She writes about the ups and downs of parenting on her blog.

An Overview On Sleep Sacks

Among the many useful items you’ll purchase or be gifted at your baby shower are sleep sacks. Sleep sacks were designed with your infant’s safety in mind to help him or her drift off into a peaceful nap or nighttime slumber.

Safe-sleep expert, Kate Desmond, says sleep sacks are one parenting purchase you will not regret.

“Sleep sacks are the perfect and safe solution for parents looking to provide a little extra comfort or warmth for their sleeping baby,” she says. “We know that loose bedding is a major risk factor when it comes to infant sleep-related deaths. A sleep sack gives parents the ability to provide a cozy environment and warmth without the risk of a traditional blanket. “

You’ll find several different types of sleep sacks on the market, so it’s a good idea to do a little research before selecting one that would work the best for your newborn.

Start off looking for any awards or recommendations that let you know you’re buying a quality sleeper. For example, some brands are listed as the No. 1 trusted choice of hospitals that is used in hospital nurseries all over America. You also want them to be recognized as “Hip Healthy” by the International Hip Dysplasia Institute. Many that have a roomy sack that doesn’t restrict a baby’s legs from moving around have this designation.

“Sleep sacks come in a variety of types with some offering swaddle arms or flaps and others more tank top-like armholes,” Desmond says. “The important thing to note when purchasing a sleep sack is your baby’s size and ability to roll. Once a baby is able to roll you definitely want to opt out of the swaddle variety and switch to the more traditional sleeveless sack.”

Be sure to check out the sleep sack design. Is it restrictive and frustrating, or is it snug in a way that promotes calm? Look for a sleep sack that was created with a patented design that allows your baby to self-soothe. When you place your baby in the sleeper, you’ll tuck his or her arms in the sack in an upward position, which is how newborns tend to place their arms when sleeping on their backs.

Determine if important safety standards were followed and whether the sleep sack has been tested to meet those standards. You won’t want the sleeper to have any toxins. It should be BPA and phthalate-free.

Can the sleep sack grow as your baby grows, or is it meant for just one stage of use? Some sleepers are only for swaddling, while others have removable shoulder snaps to allow for growth. Examine the zipper on the sleep sacks. Although any zipper will do, a reverse zipper is best because it allows for changing your newborn’s diaper without fully removing them from the sleeper. If you’re lucky, your baby will even sleep through the diaper change!

“Sleep sacks get bonus points with me if they have a double or reverse zipper,” Desmond says. “Changing a diaper from the bottom up, instead of top-down is a huge bonus in the middle of the night.”

Desmond advises that you read the washing instructions before tossing your baby’s sleep sack in the wash.

“I found that, when possible, air-drying or a low dryer setting can prevent shrinkage,” she says. “With a fairly hefty price tag, it would be a big bummer if baby outgrew the sack due to laundry error rather than a growth spurt.”

Desmond also advises that you pay close attention to fabrics and weights.

“Make sure when selecting one for your baby you consider the temperature inside your home,” she says. “During certain months, a lightweight muslin sleep sack and a onesie might be perfect. Other times of the year might require something a little more substantial, like a heavier fleece fabric.”

Fashion-conscious parents will be happy to know sleep sacks come in all different colors and designs these days, so you will be sure to find one that matches your taste.

The Sleep Sack Buying Guide

  • Sleep sacks don’t need to be washed daily if they aren’t soiled from spit-up or a diaper leak. Instead, you can toss them in the wash once or twice a week when laundering your crib sheets.
  • Always check the sleep sack’s tag for washing and drying instructions. Most can be tossed in the washing machine just fine, but require drying on low heat. Of course, you’ll also want to make sure you’re using a laundry detergent that is gentle on a baby’s skin. Find one that is free of dyes and perfumes, or use one that is specifically labeled for use on newborn clothing.
  • It’s important to do all you can to prevent SIDS (Sudden Infant Death Syndrome). The American Academy of Pediatrics has several recommendations that parents will want to follow to reduce the risk of SIDS. This includes placing baby on his or her back for the first year of life during nap and bedtimes, as well as using a firm sleep surface and stopping the use of swaddlers once the baby begins to roll over.
  • Make sure you are choosing a sleep sack that is appropriate for the current climate. They do make sleep sacks that are thicker for colder winter months and sleepers that are made of lighter fabric for warmer summer months.
  • Select a sleep sack based on your baby’s weight, not age. You don’t want the sleep sack to be too tight, which would not only be uncomfortable for your little one, but could also pose a danger. Additionally, you don’t want the sleep sack to be so loose that it doesn’t provide the calming benefit that helps your little one fall fast asleep.
  • Look on the sleep sack packaging label to see what stage the sleeper is recommended for, so that you purchase one that matches the stage your baby is in. Stage 1 may be for swaddling, Stage 2 may be for transitioning out of swaddling and Stage 3 may be for independent sleeping.
  • You’ll be pleased to discover that when it comes to price, there isn’t much deviation among the various sleep sacks. The Amazon Essentials Microfleece Sleep Sack, 2-Pack, which has the best overall ratings, is one of the most affordable brands. You’ll also find the TILLYOU Cotton 2-Way Zipper Sleep Sack meet expectations when it comes to quality and price.