Swaddle Blankets or Baby Sleeping Bags? Everything You Need to Know

Sleeping Bags

Baby Sleeping Bags, often referred to as ‘Pouches’, come in different sizes, materials, and designs.

As with other baby bedding items, many parents buy two or three to use on rotation. This ensures there’s always a sleeping bag to hand while another is in the wash. More importantly, having different tog options ensures you can keep your baby at a comfortable temperature throughout the year.

An ideal solution to baby bedtimes, baby sleeping bags are one of the more convenient pieces of sleepwear available to you and your baby.

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What is a baby sleeping bag?

A baby sleeping bag is a wearable pouch that keeps your baby at a comfortable temperature during naptimes, and throughout the night. The sleeping bag is designed to cover your baby’s entire body besides their head, neck, and arms for comfort and safety.

Whilst using a baby sleeping bag you must not use a duvet, blanket, or pillow, and your baby's head must remain safely uncovered.

When should I use a baby sleeping bag?

Baby sleeping bags are generally used from birth to 36 months. Parents may use sleeping bags from an early age to help maintain a consistent and comfortable temperature for their little one during the night.

Sleeping bags can also help newborns feel safe and cocooned, while allowing them the freedom to wriggle about without being restricted or tangled up in a blanket.

It is vital to always choose a baby sleeping bag suitable for your baby’s age and weight. Not all newborn sleeping bags are suitable from birth depending on your baby’s weight, so make sure to always check. They typically come in three sizes: 0-6 months, 6-18 months and 18-36 months, though exact sizes will vary between brands.

The neck holes should not be so big that your baby’s head could slip down inside the bag, but should be a comfortable size.

When picking your tog, understand that the higher the tog, the thicker the material and lining of your baby’s sleeping bag will be. Choosing the right tog for your baby very much depends on the climate you live in and the time of year. For this reason, it’s handy to have a few different tog sleeping bags in varying sizes that you can cycle throughout the year.

• 2.5 Tog is ideal for use year-round for temperatures anywhere between 16-20 degrees (61-68F)
• 1.0 Tog is recommended for warm summer temperatures between 21-23 degrees C (69-74F)
• 0.5 Tog is what you’ll need for when temperatures really start to soar, from around 24-27 degrees C (75-81F)

Check Out Our Tog Guide

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What are the benefits of using a baby sleeping bag?

Sleeping bags offer a convenient solution to baby bedtimes, and SnuzPouch even more so thanks to its handy nappy-change zip. Making changes during the night quick and easy, putting your little one down for the night in a SnuzPouch means less disturbance for them, and an all-around more snug night’s sleep.

So in summary, what are the benefits of baby sleeping bags?

• They will ensure your baby stays at a constant temperature and will not overheat
• Your baby can move around in the bag, and kick their legs
• They are easy to use, and if you need to feed your baby, you will not need to take them out of their sleeping bag
• No additional covers are required and your baby will not get tangled up in them, as is often the case with traditional blankets and sheets
• They promote peaceful sleep and your baby will associate their sleeping bag with a restful night’s sleep, making them great for travelling

Swaddling

What is swaddling?

Swaddling is a traditional practice of wrapping a baby up gently in a light, breathable blanket or fabric to help soothe and settle them to sleep.

How to swaddle a baby

As with all baby sleep practices, it’s important to ensure you’re using the correct and safe technique when swaddling to avoid any risks. See our visual guide below, as well as our safety tips and instructions.

• Be sure to only swaddle your baby using thin, breathable materials.
• Only swaddle using one blanket at a time.
• Never swaddle your baby above their shoulders. Your baby’s neck and head should not be covered.
• You must put your baby to sleep on their back. Never put a swaddled or unswaddled newborn to sleep on their front or side
• Monitor your baby’s temperature to ensure they don’t get too warm or cold.
• Stop swaddling before your baby starts to roll over.
• Do not swaddle too tightly or too loosely.
• Do not swaddle your baby at every sleep or nap time.
• Ensure you follow a hip friendly swaddling technique, ensuring both legs are bent up and out. It is important to leave room for the hips to move.

What are the benefits of swaddling a baby?

Swaddling is thought to recreate the secure feeling newborns felt in the womb, and is believed to help your little one transition more easily into their fourth trimester.

Often people say swaddling seems to help calm their little one, helping them settle more easily and sleep for longer. However, there is very little official research to support these theories. It’s also thought that swaddling prevents unnecessary wake-ups caused by a baby’s startle reflex. Swaddling also prevents babies from scratching their face, helping to prevent skin irritation during the night.

Medical opinion on whether swaddling is a good or bad practice is divided. So, if you’re considering swaddling your baby, make sure you always follow safe swaddling guidelines to protect your little one. Swaddling your baby can carry some risks, and is potentially unsafe if your baby is not swaddled properly. There’s also a risk of your baby overheating if they are wrapped in too many blankets, in covers that are too heavy or thick, or if they’re wrapped too tightly.

Types of swaddle blanket

• Traditional swaddling blankets: These are large, thin blankets that you wrap baby up in like a little burrito. They can be used for other things post swaddling, like muslins and burp cloths, but there’s definitely a “how do you do this?” learning curve!
• Swaddling sacks and pouches: Easier to navigate for new parents, these tend to come with things like Velcro, snaps, and zippers to help you get that snug swaddle.

So, which is better?

Ultimately, whether you choose to swaddle your baby, put them down in a sleeping bag, or both - it’s all personal preference.

Swaddling is a more traditional sleep aid method, but one that still divides medical opinion. The main limitation with swaddling is that it can only be done while baby is a newborn, with most people typically stopping after 3-4 months for safety reasons once their baby learns to roll over.

Swaddling and baby sleeping bags can be used interchangeably, however, sleeping bags can see your little one through until 36 months, offering more long-term cosiness and consistency.

Whether you decide to swaddle or use baby sleeping bags for your little one’s bedtimes, make sure that you follow sleep safety guidelines.

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As parents, we're often taught to swaddle our babies to ensure their comfort and safety while they sleep. But if you're considering alternatives, you might be curious about sleep sacks. Understanding the differences between sleep sacks and swaddles is crucial in making the right choice for your child. 

Each option comes with its own benefits and considerations, and what works best may vary from one child to another. Ultimately, creating a safe and comfortable sleeping environment is paramount for your baby's growth and development. 

Both sleep sacks and swaddles can provide this, and by understanding their distinctions, you'll be able to make an informed decision. So, let's dive into the comparison of sleep sacks vs swaddles!

Understanding Sleep Sacks

Imagine a wearable blanket for your newborn. That's what a sleep sack is – snug around the chest and looser around the feet. 

It's akin to an adult's sleeping bag but doesn't cover the head. While some sleep sacks cover the baby's arms, others leave them free. The primary focus is on providing warmth and security without compromising mobility.

Benefits of Sleep Sacks

Sleep sacks offer a range of advantages. Firstly, they are designed to keep your baby comfortably warm throughout the night, while ensuring they remain on their back, which is important for suppressing the startle reflex and, reducing the risk of Sudden Infant Death Syndrome (SIDS). 

Additionally, sleep sacks support the natural development of your baby's mobility by allowing them to roll over safely as they grow. They are incredibly convenient to use, thanks to their loose design and simple zipper fastening, making nighttime changes a breeze. Moreover, sleep sacks promote healthy hip development as they provide ample room for your baby's hips and legs to move freely.

Studies have shown that tightly wrapping the hips and legs at night can contribute to hip dysplasia and poor development. A sleep sack allows the infant to move their legs freely.

Understanding Swaddling

Swaddling has been a common practice for thousands of years. It involves snugly wrapping your baby in a lightweight blanket – generally made of soft materials like muslin, cotton, or merino wool for warmth and breathability – before bedtime, mimicking the feeling of security and comfort they experienced in the womb.

Benefits of Swaddling

Swaddling offers several benefits. By keeping your baby in the supine position, it reduces the risk of SIDS. Swaddling also helps soothe babies by minimizing the startle reflex, leading to reduced crying and increased relaxation. Many infants feel secure and find it easier to settle down and sleep when swaddled.

Sleep Sacks vs Swaddles: Core Differences

Each option comes with its own set of advantages and considerations, tailored to suit different preferences among parents. Swaddle blankets are often favored for their versatility, serving multiple purposes such as cleaning up spills or functioning as a blanket for older children. However, sleep sacks offer distinct benefits.

Many parents find sleep sacks appealing due to their convenience and ease of use. Unlike swaddling, which requires learning a specific technique, sleep sacks can be effortlessly utilized by simply placing the baby inside and fastening it, typically with a zipper.

Moreover, sleep sacks eliminate the need to transition your growing infant out of swaddling. Instead, you can purchase a larger sleep sack as your baby develops until they no longer require one. Transitioning away from swaddling can be a challenging adjustment for infants, whereas sleep sacks provide a smoother transition.

Furthermore, sleep sacks provide better mobility for your baby. With the arms free and room for leg movement, sleep sacks allow infants to kick their legs and develop their hips properly. In contrast, swaddles tend to be more restrictive, potentially hindering leg movement and affecting hip development if wrapped too tightly.

Both options have their merits and intended purposes, so let's delve deeper into when to use each one.

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When to Use Sleep Sacks and Swaddle Blankets

A sleep sack can be used from birth, although it’s important that you buy one designed specifically for a newborn if you plan to use one immediately. It should fit snugly around your newborn, eliminating any risk of them wriggling down inside or pulling it over their head.

Sleep sacks are typically available in various sizes based on age. Many brands, such as Woolino, offer sleep sacks for babies, toddlers, and even older children, with sizes extending up to age 4.

One of the advantages of sleep sacks is that they help maintain the right temperature for your child throughout the night, ensuring their comfort even when they are old enough for loose blankets and bedding. For little ones, sleep sacks also simplify nighttime diaper changes and bedtime dressing.

Sleep sacks can provide a sense of security, making them ideal for babies who dislike being swaddled or tend to move around a lot. They serve as a suitable alternative once your child has outgrown swaddling.

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However, many parents choose to initially use a swaddle when their baby is born. Swaddling simulates the comforting feeling of being in the womb and can promote better sleep and reduced stress for newborns.

It is common for parents to transition to a sleep sack around 8 weeks of age. This shift is often prompted by the potential dangers associated with swaddling, as it can restrict arm movement and prevent babies from rolling back over if they end up on their stomachs.

Now, you might be wondering about the duration of swaddling. There isn't a specific timeframe when babies "need" to be swaddled since it is not a necessity. However, it's crucial to stop swaddling before your child is capable of rolling over. According to the American Academy of Pediatrics (AAP), most babies reach this milestone between 3 to 4 months, although some may do so as early as 2 months.

It’s recommended that parents discontinue swaddling around 2 months of age and pay attention to signs of their baby attempting to roll over, resisting being swaddled, or frequently waking up during the night.

Safety Considerations

Ensuring the safety of your baby is paramount when deciding between a sleep sack and a swaddle. It's crucial to consider which option will maintain your baby's optimal temperature and provide the utmost safety while they sleep.

Whether you choose a swaddle or a sleep sack, it's essential to ensure a snug fit without any risk of covering the baby's head. Loose fabric poses a significant danger, especially for infants. Swaddles should be properly tucked in using recommended techniques, while sleep sacks should be the appropriate size for your baby.

For a safe sleep environment, place your baby on a firm, flat mattress, preferably in the same room as you, but not in the same bed. Always position your baby on their back and avoid placing them on their sides or stomachs.

If you opt for swaddling, it's important to know how to use a swaddle blanket effectively. You can use any blanket that is sufficiently large, but ensure it is lightweight to prevent overheating, especially if your baby is wearing additional layers underneath the swaddle, like a bodysuit.

We cover how to swaddle your baby below:

• Lay the blanket flat on a surface with the bottom edge pointing towards you, creating a diamond shape. Fold the top point down to form a triangle.

• Place your baby on the blanket with their feet near the bottom point of the diamond and their shoulders aligned with the folded edge.

• Gently position your baby's right arm alongside their body and fold the right side of the blanket over to the left side, tucking it under the left arm. Fold the bottom of the blanket over the baby's feet.

• Finally, fold the left side of the blanket over the baby's left arm and tuck it in on the right-hand side. Your baby should now be comfortably swaddled. Ensure there is some room for movement around the hips.

Always ensure your baby maintains a comfortable temperature at night. While parents often worry about their babies being too cold, infants are more susceptible to overheating. 

Whether you choose a sleep sack or a swaddle, avoid putting a hat on your baby when putting them to bed and refrain from placing any loose blankets, toys, or bumpers in the crib, as they pose suffocation risks.

Once your baby reaches 12 months of age, they typically have enough control to enjoy the presence of soft, cozy blankets on their bed.

Transitioning from Swaddle to Sleep Sack

At a certain point, you may find it necessary to swap your infant from a swaddle to a sleep sack. However, this transition can initially be challenging. Your baby may prefer the swaddle if they are accustomed to it and might initially feel insecure in a sleep sack.

Teaching your baby to sleep well without the swaddle is key. One effective approach is to swaddle your baby as usual but leave one arm out of the wrap while tucking the other in. It's important to alternate which arm is left out so that your child gradually adjusts. This can be done during naptime or bedtime.

If your baby appears restless and struggles during this process, consider leaving one arm out when they fall asleep but swaddling them again when they wake up for the first time. Take a gradual approach and don't expect an instant transition. It may take some time for your baby to become accustomed to the new arrangement.

Once your baby is comfortable having their arms free, the transition from swaddle to sleep sack typically becomes smoother. You can simply tuck their arms into the sleep sack, and most babies will feel secure and content.

Factors to Consider When Choosing Between a Sleep Sack and Swaddle Blanket

When deciding between a sleep sack and a swaddle, there are a good few things to think about making it challenging to determine which option is best for you and your child. Here are some key considerations to keep in mind:

• The baby's age: Swaddling is suitable for young infants and is generally recommended to be discontinued around 2 months old. Sleep sacks, on the other hand, can be used for extended periods as long as they are the right size.

• Sleep preferences: Each baby has different sleep preferences. If your little one has trouble settling, a swaddle might provide a sense of security and help them sleep better.

• Season: It's essential to consider the season when selecting sleepwear. Swaddles can be lightweight and suitable for summer, while cozier options may be preferred for winter. Sleep sacks come in various TOG ratings and can be adjusted to the season. Brands like Woolino offer light cotton sleep sacks for summer and 4-season options made of merino wool for year-round comfort.

• Safety: It's crucial to prioritize safety. Avoid using a swaddle if your child is over 2 months old or has started attempting to turn over. Ensure that the sleep sack is well-fitted, and the baby cannot slide down inside it during the night.

• Convenience: Consider the convenience factor. Swaddles can be cumbersome, especially during nighttime diaper changes, particularly if you're unfamiliar with the swaddling technique. In such cases, a sleep sack may offer more convenience.

• Appearance: While appearance definitely isn't the most important consideration, we all can't help ourselves by making our little one look even cuter. Some parents appreciate the appearance of sleep sacks, while others prefer the traditional look of a swaddle.

By taking these factors into account, you can make a more informed decision regarding whether a sleep sack or a swaddle is the right choice for you and your baby.

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Pros and Cons Comparison

With all of the above in mind, let’s break down some of the pros and cons of a swaddle vs a sleep sack, so you can compare them more easily.

Sleep sack pros

• They are very easy to use
• They make diaper changes quick and simple
• Your baby can safely roll over because their arms are free
• There’s no need to transition the baby
• They reduce the risk of SIDS
• They allow for proper hip development
• They can be used for months/years

Sleep sack cons

• You have to buy something special that can’t easily be repurposed
• They aren’t as snug, so your baby may feel less secure

Swaddle pros

• You can use any suitably sized, lightweight blanket, so there’s no need to buy something special
• You can reuse the blanket later
• Infants feel secure when swaddled and it may improve their sleep
• The baby stays on their back in the supine position, reducing the risk of SIDS

Swaddle cons

• The technique should only be used for a couple of months
• There is a transition period where the infant must get used to sleeping without the swaddle
• It can be more complicated to apply and involves a learning curve
• It’s potentially dangerous if the improper technique is used
• If the swaddle isn’t properly wrapped, the baby’s hips may not develop
• The baby’s arms aren’t free, which can be dangerous if they start rolling over early
• Diaper changes are more difficult and disruptive

As you can see, both options have advantages and drawbacks, and you may want to try both before you decide which is best for you and your baby.

Conclusion

Sleep sacks and swaddles are important parts of nightwear for your baby, and you hopefully now have a better sense of which one might work for you. 

Sleep sacks have lots of benefits, but some parents find swaddles keep their babies quieter and happier at night. After the 2-month mark, a sleep sack will likely be the best option.

Different babies have very different preferences when it comes to nightwear. Some like to be bundled up securely and will prefer a swaddle. Others like to kick and squirm and will prefer the greater range of movement offered by the sleep sack.

You will need to think about your baby’s needs and your needs in order to make a decision that will work for you, but you should now have the knowledge to do so.

FAQs

Is it safe to use a sleep sack instead of swaddling?

Yes, you can use a sleep sack, and it may even be safer than swaddling as long as it fits your infant well. There’s no risk of it coming unfastened and posing a suffocation hazard. It will keep your little one warm, comfortable, and flat on their back.

Can I swaddle my baby in a sleep sack?

You won’t usually want to swaddle over or under a sleep sack. In many cases, this will make your infant too hot. It also removes the benefit of the sleep slack i.e. free arms. 

It can be done, but you should make sure that you choose products that are compatible and that there is no chance of the swaddle coming undone and posing a suffocation risk.

What age is appropriate to transition from a swaddle to a sleep sack?

You should usually transition your baby from a swaddle to a sleep sack when they’re around 2 months old. Some parents wait longer, but you must stop swaddling your infant as soon as they show signs of trying to roll over. If your baby seems to dislike the swaddle and tries to wriggle out of it, stop using it and swap immediately.

Can I use both a sleep sack and a swaddle for my baby?

You can use both, yes. Many parents have a swaddle for the early days and then switch their baby to a sleep sack as they grow. Bear in mind that there’s a transition period for some babies as they get used to the looser feel of the sleep sack.

Some parents like to vary things, using a sleep sack at night and a swaddle for naptime, or vice versa. Find what works best for you and your child by experimenting, but make sure you always keep your child cool enough and avoid having loose fabrics in their bed while they’re sleeping.

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