How Many Layers Should My Baby Wear at Night?

When it comes to baby clothes and the number of layers they need at night, it can be confusing, to say the least! It’s important to get the balance right so that your baby is comfortable and safe during the night. In this blog post, we’ll look at how many layers a baby should wear at night and what factors you should consider when deciding on the right number of layers.

Factors to Consider When Dressing Your Baby for Sleep

When it comes to deciding how many layers your baby should wear at night, there are several factors you should take into account. These include:

1. Room Temperature: The temperature of the room where your baby is sleeping will have an impact on how many layers they need. If it’s cold, then you’ll need to add more layers; if it’s warm, then fewer layers will be necessary. It can be a good idea to invest in a baby monitor that also tells you the temperature in the room. The ideal temperature is between 16℃ and 20℃ (NHS Choices, 2017). Most of the time, you'll be fine to dress your baby in their usual sleep suit or pyjamas. If you’re using a sleeping bag, check the manufacturer’s recommendation for winter tog thickness as some are very much made for colder weather as well as some are extremely light meant for heatwaves. You can add a blanket if necessary in the colder months, but always remember to put them to sleep at the bottom of their cots. That way they're not going to be able to wriggle/move down underneath the layers. Of course, if you’re co-sleeping, remember they’ll have the extra warmth from your body too. 

2. Baby’s Age: Babies under three months old tend to lose heat more quickly than older babies, so they may need more layers in order to stay warm during the night.

3. Bedtime Routine: If you have a bedtime routine that includes giving your baby a bath before bedtime, then this can help keep them warm during the night and reduce the number of layers they need in order to stay comfortable and safe while sleeping.

How Many Layers Should a Baby Wear at Night?

The general rule of thumb is that a newborn baby should wear one more layer than an adult would wear in similar conditions – so if you would be comfortable wearing two layers of clothing in their bedroom, then your newborn should wear three layers for sleep (e.g., onesie + sleep sack + blanket). As your baby gets older and gains weight, you can reduce the number of layers accordingly – but always make sure that they are still warm enough for sleep without becoming too hot or uncomfortable. Always remember to put them to sleep at the bottom of their cots. That way they don’t wriggle down underneath the blanket/sleeping bag.

Tips for Keeping Your Baby Warm During Sleep

1. Use Breathable Materials: Make sure that the baby clothes you purchase are made from breathable materials, such as cotton, so that their skin can breathe while they are sleeping and help regulate their body temperature naturally throughout the night.

2. Dress Them Appropriately for Bedtime: Make sure that you dress your baby appropriately for bedtime by adding extra blankets or sleep sacks if needed depending on how cold it is in their bedroom – this will help keep them warm throughout the night without becoming too hot or uncomfortable due to too many layers of clothing or blankets being used.

3. Monitor Their Temperature Regularly: Keep an eye on how hot or cold your baby feels throughout the night by checking their hands and feet regularly – if they feel too hot or cold then adjust their clothing accordingly by adding or removing blankets/clothing as needed until they are comfortable again before going back to sleep again peacefully!


Dressing your baby appropriately for sleep is essential in order to ensure that they are safe and comfortable throughout the night – but getting the balance right between warmth and comfort can be tricky! By taking into account factors such as room temperature, age, weight and bedtime routine when deciding how many layers your baby needs at night, you can ensure that they are dressed appropriately without becoming too hot or uncomfortable during their slumber!

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