Why your child should sleep wearing wool

Good nightwear that keeps your child warm and dry throughout the night is an essential investment to your child’s night sleep. But, did you know wool is the best thing for that purpose?

Why your child should sleep wearing wool

Is your child hot and sweaty one minute, and then freezing cold having kick off their duvet? Then, your child is like most others. Factors such as noise, light, being too cold or too hot can interrupt your child’s sleep significantly, but it doesn’t have to be difficult or expensive to help them sleep better. Nurse Elise Haubjerg Winther says, getting the right sleep-wear for your child is an easy place to start.

– Both hot and cold children sleep best in a room below 18 degrees with no direct draft. It is also best to focus on sleep-wear rather than duvets and blankets, as most children kick off their covers during the night. It is therefore important for their nightwear to cover their arms and legs. Elise Haubjerg Winther states socks and tights can also be a good idea.

A child’s body temperature and well-being in general means a lot for a good night’s sleep, so it is important to make sure that the child can achieve that – with or without a duvet. A good night’s sleep means better days and better learning for the child, Elise explains.


You might think wool is only worn on really cold days to stay warm, but according to nurse Elise, a thin layer of wool clothing can help your child maintain a comfortable body temperature, and thereby avoid waking them up.

– Wool pyjamas are a really good idea for children who have a tendency to be quite warm, as well as to those children who have a tendency to be slightly cold. Wool has the unique ability to keep children warm and to simultaneously keep them dry, because it wicks moisture nicely, says Elise Haubjerg Winther.


In the same way a dog’s fur insulates them and helps the dog stay a comfortable temperature in all weathers, a thin layer of wool in the form of a base layer can do the same for your child, nurse Elise explains.

It is the airy structure of the wool that lets it regulate temperature. The air in the centre of the wool fibre ensures that your child is insulated from the cold and helps evaporate moisture when they are hot. The wool fibre can even absorb a large amount of moisture without feeling wet, so it is great for keeping your child dry.

5 tips for pyjamas for a good night’s sleep

– Choose long sleeves and bottoms so your child doesn’t get cold when the duvet is kicked off.

– If you aren’t using a onesie, remember socks. Warm hands and feet help the body maintain a comfortable temperature, however cold hands and feet send a signal to the brain that it’s time to crank up the temperature.

– Use one layer of clothing, preferably wool, to warm you child and keep them dry, rather than sweaty and cold.

– Monitor your child. The seasons and temperatures change, so always feel the back of your child’s neck before you go to bed to see how their temperature is.

– Trust yourself. There is no right or wrong answer for how to dress your child. Remember, you are the expert when it comes to your own child.

Source: Elise Haubjerg Winther


Cotton is one of the most used materials for sleep-wear, but sleep-wear can also be made from other materials – sometimes other materials are even preferable.

– Cotton is excellent if a child has a comfortable temperature but be aware that cotton gets moist if your child sweats and doesn’t dry quickly. This makes it cold to wear. A thin layer of cotton will also not insulate your child against the cold if they kick the duvet off during the night, Elise Haubjerg Winther points out.

But, it is important to emphasise that one can easily switch back and forth between different materials, she says.


One of the more persistent myths surrounding wool is that if you start to dress your child in woollen underwear, you cannot go back to using other materials without causing the child to freeze. That simply is not true.

– You can easily change between materials when it comes to sleep-wear, underwear, and any other clothes for your child. Wool has some excellent abilities in terms of temperature regulation, but it does not affect the child’s own ability to regulate temperature. It is simply an effective material, says Elise Haubjerg Winther.


Do you have doubts when it comes to deciding how much clothing your child should wear to bed? Take a look here.


– In Denmark we love to let our kids sleep outside in the pram. If you do too, make sure your child is always wearing a thin wool or cotton hat. The head releases a large amount of heat; therefore, it is important to keep it warm, but not too warm, otherwise it becomes sweaty. It is also better to use a warm cardigan than a onesie, as this makes it easier for you to adjust your baby’s temperature if they get too hot in the pram.

– It can be a good idea to dress your child in a thin wool base layer, so they can maintain a comfortable temperature without getting sweaty. If it is a warm day, supplement the base layer with a thin blanket. If it is cold, add a warmer shirt and a duvet.

– A onesie is great for indoor sleep-wear. Look for a light, soft and sweat-wicking material.


– A onesie for toddlers is not easy to get your hands on, since they usually only go up to 2 years old in size. But if possible, they are excellent for small children who move a lot during their sleep.

– Alternatively, a body and tights can be used. Then your child will not have a bare tummy or feet.

Older children

– A two-piece outfit is great for older children, but look for a material that keeps your child both warm and dry. Even older children sometimes kick off the covers during the night.

– Remember socks. If your child takes them off in their sleep, that is ok.

Source: Elise Haubjerg Winther
Elise Haubjerg Winther is a nurse who has worked with children’s health and well-being for more than 20 years. In addition, she is a mum to two children herself.


Organic merino wool from DILLING

At DILLING we have more than 100 years experience with manufacturing wool underwear for all members of the family. We are a family-owned company that takes pride in manufacturing underwear that sustainable, durable, and comfortable to wear. Our products are all dyed at our own eco-friendly dyehouse in Denmark.