Best baby sleep sack

11 Best Baby Sleep Sacks: My Top Picks for 2023

If you’re looking for the best baby sleep sack solution then look no further! My top picks for the 11 best baby sleep sacks of 2023 will have your little one snoozing soundly in no time. Whether you are looking for winter or summer baby sleep sacks, sleeveless sleep sacks or even an all-rounder I have it covered!

Sleep is such an important issue for all parents and everyone has an opinion on baby sleep! Whether you have a newborn are feel you want to tackle sleep training, I’ll help you to understand why each product is so great and why it’s a must-have for your baby’s sleep routine. From breathable fabrics to two way zippers, you’ll be able to find the best sleep sack for your little one!

Read on to find out which of my 11 best sleep sacks is the best fit for you and your baby. With this guide, you can rest assured that your baby will sleep safe and sound with the right sleep sack.

What are the best sleep sacks?

1 Best all-rounder: The Original Grobag All-Season Sleepbag by Tommeetippee


The Grobag All-Season Sleepbag by Tommeetippee is one of the most popular and highly rated sleep sacks for babies available. Developed with the assistance of sleep scientists, it is made from soft, breathable cotton and comes with two levels of warmth – a lightweight layer for summer and a thicker layer for winter.

The design includes shoulders that unzip to allow easier access for dressing and diaper changing, and it’s suitable for babies aged 0-2 years. An interior zipper guard protects your little ones’ skin from any zipper irritation.


  • Made from soft, breathable cotton.
  • Adjust the level of warmth for your baby by adding or removing insulation layers – adjust from 2.5 tog to 1.0 tog easily.
  • Two way zip means you can just open the bottom half of the sack for easy diaper changes in the night (maybe without even waking your baby!).
  • Zip guard protects your baby’s skin from the zipper.
  • Allows your baby to sleep in a natural ‘frog-legged’ position which is recognized by pediatricians as important for optimum hip development.

My take

Slim fitting through the chest, with a roomy, hip-healthy bottom to allow your baby to adopt a natural “frog-legged” sleeping position, which is important for correct hip development.

As an all-rounder you couldn’t wish for any better than this baby sleep sack! Available from 0 – 36 months and transitional between seasons it is an easy and safe way to keep your little one snug during the night. It comes with two layers of warmth so you can adjust it to whatever temperature you need, and its unzip shoulder design makes diaper changes and dressing a breeze!

Plus, the included zip guard ensures your little one’s skin is safe from the zipper – what more could a mum want?

2 Best for nappy changing: Baby Snuzpouch Cloud Nine Sleeping Bag


The Baby Snuzpouch Cloud Nine Sleeping Bag is a cozy and stylish sleep sack that also includes handy features like an unzipped bottom half, so you can change your baby’s nappy at night without having to take him/her out of the bag. Show me a mum that wouldn’t love this!

It comes in two sizes – 0-6 months and 6-18 months – and is made from a super soft, breathable fabric that prevents overheating. The sleeping bag is designed to keep your baby’s chest and core warm while allowing their legs to move freely and adopt a natural sleeping position.


  • Made from a super soft, breathable fabric
  • Unzipped bottom half for easier nappy changing in the night
  • Flexi-fit panel to adjust the fit as your baby grows
  • Promotes a natural sleeping position with unrestricted leg movement
  • Available in two sizes – 0-6 months and 6-18 months
  • From 0.5 tog – 2.5 tog

My take

I love this baby sleep sack for the nappy changing feature – the nights are tough enough as it is without having to take your baby out of a sleep sack just to change their nappy. The flexibility of this sleep sack also means it will fit your growing baby for longer, and the gentle fabric is perfect for keeping them warm without making them too hot.

The added bonus is that it’s stylish enough to be used during the day too!

3 Best organic: Burt’s Bees Baby Wearable Blanket


If you’re looking for the best organic sleep sack that won’t break the bank, then the Burt’s Bees Baby Wearable Blanket is a great choice. It’s made from 100% organic cotton which is both gentle and breathable, ensuring your baby sleeps soundly in comfort all night long.


  • 100% organic cotton.
  • Lightweight and breathable fabric.
  • Machine washable.
  • The generous size allows room to move while staying warm plus extra length for longer legs.
  • Unzip shoulder design for easier dressing and diaper changing.
  • Available in three sizes – newborn to 6 months, 6-12 months and 12-18 months.

My Take

Wearable blankets are essentially another way of describing sleep sacks. Burt’s Bees Baby Wearable Blanket is a great choice if you’re looking for a more budget-friendly organic sleep sack than some others on the market.

This eco-friendly fabric is soft and durable wash after wash – a high-quality product to be used again and again.

 4 Best Cotton Muslin: aden + anais Ultra Soft Zippered Muslin Sleep Sack


This aden + anais Ultra Soft Zippered Muslin Sleep Sack is made from a lightweight cotton muslin fabric, designed to keep your little one cool and comfortable throughout the night. The breathable material allows air to circulate around your baby’s body ensuring they don’t overheat.


  • Made from lightweight 100% muslin fabric.
  • Zip guard prevents skin irritation.
  • Flexi-fit panel adjusts as your baby grows.
  • Hip-healthy bottom encourages natural sleeping posture.
  • Available in four sizes – 0-6 months, 6-12 months, 12-18 months and 18-36 months.

My Take

If you’re looking for a lightweight and breathable sleep sack, this aden + anais Ultra Soft Zippered Muslin Sleep Sack is the one for you. A bonus is that it will arrive prewashed so you don’t need to worry about shrinkage! A full-length zip certainly helps with nighttime diaper changes. I love the unisex designs of the woodland creatures too!

 5 Best for newborns: Love to dream swaddle up


The Love to Dream Swaddle Up is the perfect sleep sack for newborns. It features an ergonomic design that ensures optimal comfort and support for younger babies’ heads, necks, and spines. Swaddle-style sleep sacks are popular for newborns and unlike other sleep sacks the ‘arms up’ feature, based on research of baby development in the womb, is unique to this brand. A two-way zipper allows easy diaper changes without having to unravel an entire swaddle.

The Love to Dream Swaddle Up also has a built-in temperature regulating system that helps keep your baby at a comfortable temperature all night long.


  • Designed for newborn – 4 months.
  • Recognized by International Hip Dysplasia Institute.
  • Ergonomically designed to provide optimal comfort and support.
  • The arms up design means your baby’s arms can self soothe without scratching.
  • Temperature regulating system keeps baby comfortable all night.
  • Two-way zipper allows for easy diaper changes.

My take

The simple zip up design means you don’t need to worry about fiddly blankets (or teach anyone else watching your baby how to swaddle!). I especially like the ergonomic design meaning babies are comfortable and supported all night. The built-in temperature regulating system keeps your baby at a comfortable temperature all night, and the two-way zipper makes diaper changes quick and easy.

If you’re looking for a safe and secure sleep solution for your new bundle of joy, then this is the one for you!

6 Best for toddlers: Halo Early Walker Sleep sack


The Halo Early Walker Sleep Sack is designed with active toddlers in mind. Made from a lightweight and breathable cotton blend fabric that allows for easy movement without overheating, the unique footed design keeps little toes warm while the zip makes diaper changes easier at night time, making it the perfect sleep solution for those first confident steps.


  • Lightweight breathable cotton sleep sack.
  • Designed for early walkers from 18-36 months.
  • Inverted zipper for easy diaper changes.
  • Unique footed design to keep little toes warm.

My Take

This Halo Sleep sack is an ideal choice for toddlers who have become frustrated by their closed end sleep sacks or, possibly more likely, are exploring their rooms in the early hours. They are much less likely to come to any harm by tripping over a long sleeping bag and will stay snuggly while they play with their toys.

I think this idea is fantastic for toddlers who are too old for a baby sleeping bag but not quite old enough to pull duvet covers back over themselves during chilly nights.

7 Best for winter: Baby Deedee Sleep Nest Teddy Sleeping Bag


This cozy Teddy Sleeping Bag is perfect for chilly winter nights. It’s made from a super soft and cuddly quilted cotton material so will keep your little one warm all night long. This sleep sack is also machine washable, making it easy to keep clean.


  • Faux fur luxurious lining.
  • Warm for chilly winter nights.
  • Full-length zip and shoulder snaps mean it is very easy to take on and off.
  • Quilted duvet material.
  • Keeps babies comfortable and secure.
  • Machine washable.

My Take

This is the perfect winter sleep solution for your little one. The faux fur lining will keep them extra warm and cozy, while the full-length zip makes it easy to get on and off.

If your baby starts rolling move around a lot during their sleep this sleep sack is also designed with safety in mind, keeping them secure all night long. Plus the machine-washable material means you don’t need to worry about spills or messes – just throw it in the washer! This is a great choice for those cold winter nights.

8 Best for Summer: The Kyte Baby Original Bamboo Sleep Bag


The Kyte Baby Original Bamboo Sleep Bag is a lightweight sleep solution perfect for warmer months. Made from incredibly soft bamboo fabric, this sleep sack will keep your baby cool and comfortable all night long. The breathable fabric allows for airflow and temperature regulation so you don’t have to worry about getting too hot during summer nights.


  • Lightweight, breathable bamboo material.
  • Temperature regulating.
  • Zipper design makes changing diapers easy.
  • Bamboo is believed to be 3% cooler than cotton.
  • Soft and hypoallergenic.

My Take

This is an excellent choice for those hot summer nights or those living in warmer climates. A hot sticky baby is not a restful baby! This sleep sack provides the perfect solution: a soft light layer of breathable fabric so your baby is comforted but cool and no need to use blankets.

The zipper design makes diaper changes a breeze, plus, the fabric is incredibly soft and hypoallergenic, so you can rest assured your little one will get a good night’s sleep!

9 Best for travel: JoJo Maman Bebe Sleep Snuggler


The JoJo Maman Bebe Sleep Snuggler is the perfect sleep solution for parents on-the-go. This lightweight and portable sleep sack can easily be thrown in a suitcase or diaper bag to provide your little one with a cozy and familiar sleeping environment wherever you go. It’s made from soft jersey fabric that provides warmth while allowing enough breathability so your baby doesn’t overheat.


  • Removable booties and arms convert to an arms out sleep sack.
  • Appropriate for all climates apart from very warm temperatures.
  • Lightweight and portable.
  • Soft jersey fabric.
  • Available in 4 sizes.
  • Provides warmth while allowing enough breathability.
  • Double zipper makes it easier to take off and put on.
  • Machine washable.

My Take

Any parent who has traveled with their baby will know the importance of packing light – the younger the child the more stuff they seem to need! This sleep sack is an ideal space saver as it can be adapted to suit the environment. Remove long sleeves and feet if the aircon is high or leave sleeves on for cooler nights to keep your baby warm.

I think an extra bonus is the car-to-cot transferability too – don’t wake the baby!

10 Best for a splurge: Bambino Merino Sleeping bag


Parents around the world are breathing a sigh of relief as baby sleep sacks made from double knitted superfine organic merino are making baby bedtime much easier. The 370gsm merino fabric used in these baby sleeping bags creates a warm and comforting microclimate around your baby, allowing for deep and restful sleep throughout the night.

As your baby is kept warm yet cool when needed, bulky bedding doesn’t have to be used anymore – making it not only comfortable for your baby but also convenient for parents. Plus, since all fabrics used in this baby sleep sack are pure, natural, and certified organic, you know that your baby’s sleep-time environment is safe and secure!


  • 100% superfine merino wool.
  • 370gsm (grams per square meter) weight for extra warmth.
  • Generously sized to fit your growing baby.
  • No irritating labels at the neck, ideal for sensitive skin.
  • Hypoallergenic, temperature regulating and breathable.
  • Fits 2-24 months.

My Take

This baby sleep sack is an ideal choice if you’re looking to splurge on a high-quality product. The double-knitted, superfine organic merino fabric is both luxurious and functional, providing your little one with the perfect amount of warmth while regulating their temperature. Plus, since it’s certified organic, you can rest assured that your baby is sleeping in a safe and secure environment.

All-in-all this sleep sack comes highly recommended!

11 Best for budget: Simple Joys by Carter’s Baby Cotton Sleeveless Sleep Bags (pack of 3)


The Simple Joys by Carter’s Baby Cotton Sleeveless Sleep Bags are just what you need to keep your baby comfy and secure while he or she sleeps. These lightweight sleep bags come in a pack of three and are made from soft cotton fabric that provides the perfect amount of breathability. The zipper design makes diaper changes a breeze, plus it’s machine washable for easy care!


  • Comes in pack of 3.
  • Lightweight cotton fabric, ideal for warmer months.
  • Zipper design makes changing diapers easy.
  • Machine washable for easy care.
  • Cute designs.

My Take

This is an excellent choice if you’re looking for a budget-friendly option for a baby sleep sack. These sleeveless sleep bags provide all the comfort and security of traditional sleep sacks, but they’re much more lightweight and breathable – making them a great choice for the warmer months.

Plus, the zipper design makes diaper changes easier than ever! And at such an affordable price, you really can’t go wrong!

What is a baby sleep sack?

A baby sleep sack is like a wearable blanket that helps your little one stay warm while they sleep and provides an excellent alternative to blankets. Known to be hazardous to babies during naps and nighttime sleep, loose blankets are advised against in favor of sleep sacks. The American Academy of Pediatrics advises that babies should sleep on a firm mattress with a simple fitted sheet, wear clothes suitable for the room temperature, have no toys or additional objects in their crib and no loose blankets.

A good baby sleep sack is crucial in helping reduce the risk of Sudden Infant Death Syndrome (SIDS). Baby sleep sacks provide an excellent alternative to blankets as they keep your little one warm without the risk of suffocation or entanglement.

Most baby sleep sacks are made from soft fabrics like cotton and have zippers so that diaper changes can be done quickly and easily. They come in a variety of sizes, styles, and materials to suit different weather conditions and climates.

In addition, they provide added mobility and comfort while allowing enough breathability so that babies stay cool throughout the night.

Baby sleep sacks make sleeping safer, easier, and more comfortable for parents as well as their little ones!


Sleep sack safety checklist

When it comes to keeping your little one safe, secure and comfortable at night, baby sleep sacks are an excellent choice. From lightweight cotton fabrics perfect for warmer months to thick merino wool fabrics ideal for colder climates, there’s something available to suit every season and weather condition.

Plus, they provide plenty of breathability so that your baby stays cool and comfortable throughout the night. With so many great options available, you’re sure to find one that works for your family!

Frequently Asked Questions

How should I choose the best sleep sack for my baby?

When choosing a sleep sack for your baby, it’s important to consider the fabric material, size, and climate. Look for materials like merino wool and organic cotton that will provide plenty of warmth while regulating temperature. Make sure you get the correct size for your little one’s age and weight so as not to restrict their growth and movement. Also, remember the higher quality of the fabric the longer it will last.

If you are sleep training your baby you may like to take this into consideration when selecting a sleep sack. Read my article about the best gentle sleep training techniques.

Why are weighted sleep sacks no longer recommended?

The American Academy of Pediatrics (APP) states that weighted clothing swaddled on or near your baby isn’t safe and not recommended. Weighted sleep sacks have been found to be unsafe for babies as they can be too restrictive for babies’ movement.

Additionally, there is a risk of suffocation if the weight of the blanket becomes too heavy. It is best to opt for lightweight breathable fabrics.

What does tog mean?

Tog is a measure of thermal insulation and is used to indicate how warm a fabric or material will keep you. The higher the tog rating, the more insulated and warmer the fabric or material will be. Baby sleep sack ratings usually range from 0.5 to 2.5 and can help parents decide which sleep sack is most appropriate for their baby depending on the environment.

When should my baby stop using a sleep sack?

When your baby shows signs that he/she can roll over comfortably and stay in the same position for a period of time, it is safe to stop using a sleep sack. The AAP recommendation is to wait until they are at least one year old before introducing toys, pillows, loose bedding or quilts. Of course if parents or primary carers want to wait longer then that is their decision with many keeping their children in sleep sacks well into their third year.

At what age should my baby wear a sleep sack?

Sleep sacks are generally recommended for babies from birth to 6 months of age. It is important to choose the correct size and fabric material so that it is not too restrictive or heavy on your baby.

Choose sleep sacks designed specifically for your baby’s age as they can differ as your child grows. The American Academy of Pediatrics (AAP) recommends waiting until a baby is at least one year old before introducing toys, pillows, or quilts.

Can a 2 month old wear a sleep sack?

Yes, a 2 month old can wear a sleep sack, even if they are still in a bassinet by your bedside. Make sure to choose one that is specifically designed for babies of this age and size. Look for lightweight breathable fabrics like organic cotton or merino wool so that your baby stays cool and comfortable throughout the night. Additionally, check the fit and make sure it isn’t too tight.

Can I put my 1 month old in a sleep sack?

Yes, a 1 month old can wear a sleep sack. When selecting one make sure to get the right size and fabric material for your baby’s age and weight. Often parents prefer to swaddle their newborns but there are some excellent sleep sacks that combine with the swaddling concept too. Look for materials like organic cotton or merino wool that will provide plenty of warmth while regulating temperature.

Are sleep sacks safe for babies?

Yes, sleep sacks are considered to be safe and secure for babies when used correctly. They provide an alternative to blankets and can help reduce the risk of SIDS by providing a comfortable, warm cocoon for your little one. When choosing a sleep sack make sure you get the right size and fabric material so that it is not too restrictive or heavy.

Click here to read the Department of Health Safe Sleep Frequently Asked Questions

Final thoughts

When selecting a sleep sack, make sure to get the right size and fabric material for your baby’s age and weight. Look for lightweight breathable fabrics that will provide plenty of warmth whilst regulating their temperature and fit your baby perfectly.

Additionally, consult with your healthcare provider about when it is time to transition away from using a sleep sack if you are concerned or would like further guidance.

Why should you trust me?

As a paramedic and mum of two I know that choosing sleep sacks for babies can be a minefield for parents! I know how important it is to create a safe sleep environment for babies so I always recommend that parents look for high-quality products that have been tested using the latest safety guidelines.

A happy sleeping baby is the ultimate goal so don’t be afraid to try out different styles and fabrics until you find the best fit.

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