When a baby sleeps well, the whole family often sleeps better. Sleep is absolutely crucial for your child's development, well-being, and mood. It is during sleep that the body recovers, processes the day's impressions, and grows. Therefore, it makes good sense to create the best conditions for a safe and comfortable night's sleep.
A baby sleeping bag has become a popular choice among many parents because it helps the child maintain a stable temperature throughout the night while also providing a feeling of security – much like being tucked in under the duvet.
At That's Mine, we have designed a soft and comfortable sleeping bag that gives little ones a peaceful and secure sleep – both at night and during daytime naps.

In this guide, we'll delve into:
- Why a sleep sack can be a good solution for babies
- What TOG value means
- How to choose the right sleep sack
- How to create good sleep habits
- How a sleep sack can become a natural part of your bedtime routine

Why choose a sleeping bag for babies and children?
A sleeping bag has several practical and reassuring benefits:
Stable temperature throughout the night
The sleeping bag keeps the child warm without being kicked off.
Security and calm
Its soft and enveloping shape can give the child a sense of security.
Safer sleep
There is less risk of the child getting the duvet over their head.
Better sleep routine
When the sleeping bag becomes part of the bedtime routine, the child can start associating it with sleep.
Perfect for both night and naps
The sleeping bag can be used in the crib, in the pram, or for a midday nap.
When the child learns that the sleeping bag means "it's bedtime now," it can make bedtime easier and more peaceful.
That's Mine sleeping bag – designed for safe baby sleep
At That's Mine, we have developed a sleeping bag that combines functionality, comfort, and a calm design, fitting perfectly into a cozy nursery.
The sleeping bag is created with a focus on both the child's comfort and the parents' daily life.
Soft and comfortable
The sleeping bag is made of soft materials that feel comfortable against the child's skin. It envelops the child in a way that provides warmth and security without restricting their freedom of movement.
Soft and breathable textiles are important for children's sleep comfort because they help regulate temperature and reduce the risk of overheating.
This makes the sleeping bag ideal for both newborns and slightly older babies who are starting to move more in their sleep.
That's Mine sleeping bag – designed for safe baby sleep
At That's Mine, we have developed a sleeping bag that combines functionality, comfort, and a calm design, fitting perfectly into a cozy nursery.
The sleeping bag is created with a focus on both the child's comfort and the parents' daily life.
Soft and comfortable
The sleeping bag is made of soft materials that feel comfortable against the child's skin. It envelops the child in a way that provides warmth and security without restricting their freedom of movement.
Soft and breathable textiles are important for children's sleep comfort because they help regulate temperature and reduce the risk of overheating.
This makes the sleeping bag ideal for both newborns and slightly older babies who are starting to move more in their sleep.
Elasticated waist keeps the sleeping bag in place
One of the most practical features of That's Mine's sleeping bag is the elastic band at the waist.
This means the sleeping bag stays in place correctly, even when the baby turns or moves during the night.
The result is:
- better comfort
- less sleep disturbance
- a sleeping bag that stays where it should
Practical double zipper
Parents know that nighttime diaper changes are sometimes unavoidable.
That's why the sleeping bag has a practical double zipper, which can be opened from both the top and the bottom.
This makes it easier to:
- change diapers without taking off the entire sleeping bag
- regulate temperature
- tuck the baby in again quickly
The central zipper also makes the sleeping bag easy to put on and take off – even when holding a tired baby.
What does TOG value mean?
That's Mine sleeping bag: TOG 1.5
That's Mine sleeping bag has a TOG value of 1.5, making it an all-season sleeping bag.
It is typically suitable for room temperatures of:
18–21 degrees Celsius
This means the sleeping bag works well in most Danish homes – both in the bedroom and in the nursery.
If the temperature varies slightly throughout the year, you can instead adjust the child's clothing underneath the sleeping bag.
Maintain a stable temperature in the nursery
The temperature in a child's bedroom plays a greater role in sleep quality than many might realize.
Babies have not yet fully developed their ability to regulate their body temperature. Therefore, they can more easily become both too hot and too cold during the night.
The recommended temperature in a nursery is typically between 18 and 21 degrees Celsius.
This is a temperature at which most babies sleep most peacefully, without the body having to expend energy regulating heat or cold.
If the room is too warm, the child may experience more restless sleep and wake up more frequently. Conversely, a room that is too cold can also make it difficult for the child to fall into deep sleep.
Here, a sleeping bag can be a great help because it keeps the temperature more stable throughout the night. Unlike a duvet, which can easily be kicked off, the sleeping bag follows the child's movements and keeps the body evenly warm.
That's Mine's sleeping bag has a TOG value of 1.5, making it suitable for room temperatures of approximately 18–21 degrees Celsius – and therefore works well as an all-season solution.
Elasticated waist keeps the sleeping bag in place
One of the most practical features of That's Mine's sleeping bag is the elastic band at the waist.
This means the sleeping bag stays in place correctly, even when the baby turns or moves during the night.
The result is:
- better comfort
- less sleep disturbance
- a sleeping bag that stays where it should
Practical double zipper
Parents know that nighttime diaper changes are sometimes unavoidable.
That's why the sleeping bag has a practical double zipper, which can be opened from both the top and the bottom.
This makes it easier to:
- change diapers without taking off the entire sleeping bag
- regulate temperature
- tuck the baby in again quickly
The central zipper also makes the sleeping bag easy to put on and take off – even when holding a tired baby.
What does TOG value mean?
That's Mine sleeping bag: TOG 1.5
That's Mine sleeping bag has a TOG value of 1.5, making it an all-season sleeping bag.
It is typically suitable for room temperatures of:
18–21 degrees Celsius
This means the sleeping bag works well in most Danish homes – both in the bedroom and in the nursery.
If the temperature varies slightly throughout the year, you can instead adjust the child's clothing underneath the sleeping bag.
Maintain a stable temperature in the nursery
The temperature in a child's bedroom plays a greater role in sleep quality than many might realize.
Babies have not yet fully developed their ability to regulate their body temperature. Therefore, they can more easily become both too hot and too cold during the night.
The recommended temperature in a nursery is typically between 18 and 21 degrees Celsius.
This is a temperature at which most babies sleep most peacefully, without the body having to expend energy regulating heat or cold.
If the room is too warm, the child may experience more restless sleep and wake up more frequently. Conversely, a room that is too cold can also make it difficult for the child to fall into deep sleep.
Here, a sleeping bag can be a great help because it keeps the temperature more stable throughout the night. Unlike a duvet, which can easily be kicked off, the sleeping bag follows the child's movements and keeps the body evenly warm.
That's Mine's sleeping bag has a TOG value of 1.5, making it suitable for room temperatures of approximately 18–21 degrees Celsius – and therefore works well as an all-season solution.

Avoid too many layers of clothing
When you want to ensure that your baby isn't cold, it can be tempting to dress them in many layers of clothing under the sleeping bag.
But actually, it's just as important to prevent the baby from getting too hot.
Overheating can make sleep more restless and affect the child's comfort throughout the night.
A good rule of thumb is:
Dress your child in one more layer than you would comfortably wear yourself at the same temperature.
For example, if you would sleep in a light sleepsuit in the room, it would typically be appropriate for the baby to wear:
- a bodysuit
- a light sleepsuit or pyjamas
- the sleeping bag on top
The most important thing is that the child feels comfortably warm – but not hot and clammy.
How to check if your baby is too hot or cold
It can be difficult to gauge a baby's temperature because their hands and feet often feel cool – even if the baby is perfectly fine.
A better way to check the temperature is by feeling their:
- neck
- chest
- back
If the baby feels:
Slightly warm and dry
The temperature is likely just right.
Sweaty or very warm
The baby is likely wearing too many clothes.
Cold on the upper body
An extra layer may be needed.
By adjusting the layers under the sleeping bag, you can quickly find the temperature that best suits your baby.
A flexible year-round solution
Precisely because the temperature in the home can vary throughout the year, many parents choose an all-season sleeping bag.
With a sleeping bag of TOG 1.5, you can typically use:
In summer
- sleeping bag
Spring and autumn
- bodystocking or onesie
- light sleepsuit
- sleeping bag
In winter
- long-sleeved bodystocking or onesie
- sleepsuit
- sleeping bag
That way, you don't need to change the sleeping bag with the seasons – you just adjust the clothing underneath.
How to check if your baby is too hot or cold
It can be difficult to gauge a baby's temperature because their hands and feet often feel cool – even if the baby is perfectly fine.
A better way to check the temperature is by feeling their:
- neck
- chest
- back
If the baby feels:
Slightly warm and dry
The temperature is likely just right.
Sweaty or very warm
The baby is likely wearing too many clothes.
Cold on the upper body
An extra layer may be needed.
By adjusting the layers under the sleeping bag, you can quickly find the temperature that best suits your baby.
A flexible year-round solution
Precisely because the temperature in the home can vary throughout the year, many parents choose an all-season sleeping bag.
With a sleeping bag of TOG 1.5, you can typically use:
In summer
- sleeping bag
Spring and autumn
- bodystocking or onesie
- light sleepsuit
- sleeping bag
In winter
- long-sleeved bodystocking or onesie
- sleepsuit
- sleeping bag
That way, you don't need to change the sleeping bag with the seasons – you just adjust the clothing underneath.
The sleeping bag as part of the bedtime routine
Babies love repetition and familiarity.
When the same things happen every evening, the child learns that this means it's bedtime now.
The sleeping bag can play an important role here.
A simple bedtime routine could be
- Bath or wash
2. Clean nappy and pyjamas
3. Put on the sleeping bag
4. A quiet bedtime story
5. Put in bed
When the sleeping bag becomes a regular part of the routine, the child can begin to associate it with comfort and sleep.
Small things can make a big difference
When you become a parent, you quickly discover that small things can make a big difference in everyday life.
A good sleeping bag can be one of them.
It can:
- create security
- make bedtime easier
- provide more peace during the night
And when the baby sleeps better, parents often do too.
Final thoughts
Sleep is a vital part of your child's development – and a safe sleeping experience can make all the difference.
A sleeping bag is a simple yet effective solution that helps keep your child warm, safe, and comfortable throughout the night.
That's Mine's sleeping bag is designed with a focus on:
- soft materials
- practical details
- freedom of movement
- a comfortable temperature with TOG 1.5
It can be used all year round and quickly becomes a natural part of both nighttime sleep and daytime naps.
When bedtime becomes a cozy and familiar routine, it creates peace – both for the child and for the rest of the family.
The sleeping bag as part of the bedtime routine
Babies love repetition and familiarity.
When the same things happen every evening, the child learns that this means it's bedtime now.
The sleeping bag can play an important role here.
A simple bedtime routine could be
- Bath or wash
2. Clean nappy and pyjamas
3. Put on the sleeping bag
4. A quiet bedtime story
5. Put in bed
When the sleeping bag becomes a regular part of the routine, the child can begin to associate it with comfort and sleep.
Small things can make a big difference
When you become a parent, you quickly discover that small things can make a big difference in everyday life.
A good sleeping bag can be one of them.
It can:
- create security
- make bedtime easier
- provide more peace during the night
And when the baby sleeps better, parents often do too.
Final thoughts
Sleep is a vital part of your child's development – and a safe sleeping experience can make all the difference.
A sleeping bag is a simple yet effective solution that helps keep your child warm, safe, and comfortable throughout the night.
That's Mine's sleeping bag is designed with a focus on:
- soft materials
- practical details
- freedom of movement
- a comfortable temperature with TOG 1.5
It can be used all year round and quickly becomes a natural part of both nighttime sleep and daytime naps.
When bedtime becomes a cozy and familiar routine, it creates peace – both for the child and for the rest of the family.
FAQ: Frequently asked questions about baby sleeping bags
Most sleeping bags can be used from the first months of a child's life, as long as the size fits the child. Many parents start using a sleeping bag when the baby is no longer swaddled, or when the child begins to move more in their sleep.
The most important thing is that the sleeping bag fits correctly at the shoulders and is not too large, so the child cannot slip down into it.
Yes, a sleeping bag can be a safe alternative to a duvet, because it stays on the child throughout the night. This means the child won't pull the duvet over their head or kick it off and get cold.
Sleeping bags are specifically designed to provide warmth and security without loose textiles in the bed.
TOG is a unit of measurement indicating how well a textile retains heat.
The higher the TOG value, the warmer the product.
A sleeping bag with a TOG of 1.5 is typically suitable for a room temperature of 18–21 degrees Celsius, making it suitable for year-round use in most Danish homes.
What the baby should wear under the sleeping bag depends on the room temperature.
At approximately 18–21 degrees Celsius, a good combination typically includes:
- a bodysuit
- a light sleepsuit or pajamas
- the sleeping bag on top
The most important thing is that the child is neither too hot nor too cold.
The best way to check the temperature is by feeling the baby's neck or chest.
If the skin feels:
- warm and dry → the temperature is appropriate
- sweaty → the baby is probably wearing too many clothes
- cool → the baby might need an extra layer
Hands and feet can often feel cold without the baby actually being cold.
Yes, many sleeping bags are designed for year-round use.
A sleeping bag with a TOG of 1.5 works well in most homes throughout the year. You can adjust the temperature by changing the clothing under the sleeping bag instead of changing the sleeping bag itself according to the season.
Yes, sleeping bags can certainly be used for naps in the pram, provided the temperature is appropriate.
Many babies actually sleep better because the sleeping bag provides a familiar feeling of security – even when the child is sleeping outdoors or in new surroundings.
There isn't a fixed age for when to stop using a sleeping bag. Many children use sleeping bags until they are 2–3 years old, or until they themselves start to prefer a regular duvet.
It largely depends on the child's needs and sleep habits.
For many babies, a sleeping bag can help create a more stable and secure sleep. When the sleeping bag becomes a regular part of the bedtime routine, the child can begin to associate it with peace and sleep.
This can make it easier to fall asleep – both in the evening and for daytime naps.















































































