• Baby Sleeping Bags

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    Baby Sleeping Bags - Everything you need to know

    Heard about sleeping bags for babies but aren't sure what they are all about? Let us take you through all you need to know when looking for the best sleeping bag for your baby.

    What is a Baby Sleeping Bag?

    Baby sleeping bags are specifically designed to replace the traditional blankets and sheets used when putting a baby to sleep. They have armholes, an opening for the neck and a zipper down the front or side and are worn by your baby.

    Why use a Baby Sleeping Bag?

    There are many benefits to using a baby sleeping bag including a safer sleep environment, a more comfortable baby and an easier bedtime routine.  Let’s look at the benefits in more detail.

    Safe Sleeping

    Every parent wants to do all that they can to keep their baby safe. Research has shown that using a safe baby sleeping bag can reduce the risk of Sudden Unexpected Death in Infancy (SUDI). SUDI includes Sudden Infant Death Syndrome (SIDS) and fatal sleep accidents. A safe sleeping bag has a fitted neck and armholes, no hood and is the correct size for the baby. Sleeping bags can reduce SUDI because:

    • They reduce the risk of bedclothes covering baby’s face

    • They delay baby rolling onto their tummy during sleep until baby is past the age of peak risk of SUDI

    • They promote back sleeping as the zipper often opens to the front

    • They will keep baby’s temperature at a more constant level while sleeping

    All sleeping bags stocked by Baby Sleep Store are safe and comply with Safe Sleep guidelines.

    Other things that can reduce the incidence of SUDI are:

    • Putting baby to sleep on their back

    • Baby sleeps in their own safe cot with a firm, clean, properly fitted mattress

    • Baby’s safe bed is in their parents room for the first 6-12 months of life

    • Baby is not exposed to tobacco smoke during pregnancy or after birth

    • Baby’s bed does not include a pillow, doona, soft toys, padded cot bumpers or lambswool

    • No electric blankets, hot water bottles or wheat bags are used for baby


    Using a baby sleeping bag instead of a top sheet and blankets means your baby can't kick their covers off. This ensures they stay at a comfortable temperature and won't wake from being cold. A properly fitted sleeping bag will also mean your baby doesn't get tangled in their covers when they move around and so are more likely to have a better sleep.

    Easier bedtime

    Baby sleeping bags make putting your baby to bed a faster and easier process.  You don't need to worry about tucking in sheets or blankets, all you have to do is zip your baby inside the bag and you are good to go. The sleeping bag will become a cue for sleep for your baby when used as part of their bedtime routine.

    Easily portable

    Many sleeping bags can be used in a car seat or pram making it easy to head out and about without a lot of blankets. This is also very handy when travelling or visiting and means your baby will still have part of their familiar sleep environment in the new place.

    What’s the right Sleeping Bag for my Baby?

    Baby sleeping bags come in a variety of different designs, colours and weights which suit a range of temperatures. Here are the key points to consider when choosing the right sleeping bag for your baby.


    Baby sleeping bags are sized either according to weight or age,  depending on the brand. Keep in mind that these are estimates so it's a good idea to look at the specific measurements of the bag especially if your baby is particularly big or small for their age. It's important that you choose a bag that fits snugly and is not too big to comply with Safe Sleep guidelines. The neck should be well fitted so baby's head can't slip underneath and the bag shouldn't be too big or baby could become tangled in it. Like clothes, you will need to buy larger bags as your baby grows but most are designed to last at least six months or longer once bub is older and grows more slowly.

    Weight of bag

    Your baby should be warm but not hot when sleeping, just like us. This ensures they are not only comfortable but overheating also increases the risk of SUDI.  

    You will need to consider the following when choosing the weight of your baby’s sleeping bag:

    • The temperature of your baby's room or nursery including if you will be using a heater or air conditioning. The ideal temperature for the room is 18-20 degrees celsius. Having a thermometer in your baby’s room helps and many sleeping bags come with a handy thermometer card along with a guide for what to dress your baby in while sleeping.

    • Clothing they will wear to bed. As noted above, most sleeping bags come with a handy guide for what to dress your baby in depending on the temperature of their room.

    • The individual baby. Like us, some will be naturally warmer or cooler little people. The best way to check your baby’s temperature is by feeling their chest or tummy which should be warm. Often their hands and feet will feel cool.

    Tog ratings

    Baby sleeping bags are designed to be worn in a range of temperatures. You will need at least a couple of different weight bags for the different seasons of the year. The warmth of a sleeping bag is measured with a tog rating. This is a rating of how much the fabric of the bag insulates. The higher the tog, the warmer the bag. Following is a guide of the most common sleeping bag tog ratings and the temperature ranges they are best suited to.

    0.5 Tog

    0.5 tog sleeping bags are suited to hot summer temperatures between 24-26 degrees Celsius plus. These bags are commonly made of light cotton, muslin or bamboo. You can find sleeping bags with this tog in the Summer Sleeping Bags page of our site.

    1.0 Tog

    1.0 tog sleeping bags are best suited to summer and daytime naps for temperatures between 20-24 degrees Celsius. These bags are usually made from cotton. You can find sleeping bags with this tog in the Spring-Autumn Sleeping Bags page of our site.

    2.5 Tog

    2.5 tog sleeping bags are suited to temperature ranges of 18-23 degrees so suit nights most of the year and winter naps. They are mostly made of cotton with cotton, bamboo or polyester filling,

    3.5 Tog

    3.5 tog sleeping bags are for cold winter temperatures of 14-20 degrees celsius. They are commonly made of cotton with a cotton, bamboo or merino filling. Some of these bags also have sleeves to make them extra cosy.

    You can find 2.5 and 3.5 tog sleeping bags in the Winter Sleeping Bags page of our site.

    Material Used For The Lining And Filling

    Baby sleeping bags are made from a variety of fabrics including cotton, bamboo and merino. The fillings used in warmer weight bags can be made of cotton, bamboo, merino or polyester.   These fabrics and fillings have different features that we will cover below, however part of the choice is your personal preference.

    Cotton lining and filling

    Cotton is a natural breathable fibre that will help your baby stay at an even temperature. It is a soft fabric that is comfortable next to your baby’s skin.

    Organic Cotton

    Organic cotton is grown and manufactured in an environmentally and socially responsible manner. It is a luxuriously soft fabric that is ideal to use on delicate baby skin. ergoPouch is a great brand of organic cotton sleeping bags that we highly recommend.

    Cotton and Bamboo

    Bamboo is naturally temperature regulating fabric and the hollow microfibers make it highly breathable, helping your baby stay warmer in the winter and cooler in the summer. Bamboo fabric is environmentally friendly and 60% more absorbent than cotton. It has natural anti-bacterial, anti-static properties so it is great for allergy prone, sensitive skin. Shop for bamboo sleeping bags.


    Muslin is a lightweight, open weave cotton that is soft and becomes softer the more it is washed.  It has been used for centuries to swaddle babies. In a single layer it it perfect for hot weather and in multiple layers it suits cooler temperatures. Shop for muslin sleeping bags.

    Cotton lining and Polyester filling

    Cotton is comfortable next to the skin and polyester adds warm while remaining lightweight. These bags are easily laundered and dry quickly plus are very affordable. Slumbersac has a huge range of great designs for this kind of sleeping bag.


    Merino is highly breathable fabric which  helps regulate your baby’s temperature. It’s soft and light plus non-itchy and hypoallergenic, making it ideal for babies with sensitive skin and eczema. Merino can also readily release moisture which means no clamminess next to baby’s skin. Shop for merino sleeping bags.

    Travel Baby Sleeping Bags

    Many sleeping bags have a travel slot and double ended zip which allow the straps of a car seat or pram to be fastened through the bag. This makes it easy to use your sleeping bag when out and about and also transfer your sleeping baby from the car or pram without disturbing them too much.


    Sleeping bags have a zip either down the front or up the side to give access to put your baby in and out of the bag.  There are benefits to both options.

    Front zips

    Bags with zips down the front are preferred by most mums. The zips are two way to allow for easy nappy changes without needing to remove the whole bag. They are better suited for older babies who can stand up as they don’t have press studs on the shoulders like side zip bags which can pop open.

    Side zips

    Bags with side zips can be opened up completely flat which can make nappy changes easier, especially in heavier weight bags and allow them to dry more quickly when laundered. They usually have press studs on the shoulders.

    How do I care for my Sleeping bag?

    Baby sleeping bags are designed to be easily laundered. They can be machine washed as per the the care instructions provided with each bag. It’s recommended to keep the zips closed when washing your sleeping bags to help care for them.

    It’s a good idea to air the bag after each use to keep it fresh between washes.  This can be done easily over the side or end of the cot. Always remove any bags being aired before baby goes into the cot.

    How many Baby Sleeping bags do I need?

    You will most likely need at least two different weight bags - a lighter style for day time naps and a warmer style for overnight. Once you have found the right sleeping bags for your baby it's a good idea to have at least two bags of each weight. This means you have a spare when the other is in the wash. You don't want to be caught short for those inevitable nappy leaks or spit ups!

    Need more help?

    You should now have the information you need to choose the right sleeping bag for your baby. If you have any questions or need further help, don’t hesitate to contact us for personalised advice via phone or email.