‘What should my baby wear to bed?’ may seem a simple question for many, but for new parents it can be a minefield. Especially if we’re going through a summer heatwave or a very cold spell.

It’s normal to worry that your little one may become too hot or too cold, especially as young babies are unable to regulate their body temperature and release heat rapidly.

From knowing what tog size sleep bags to buy, to how many layers your newborn should be wearing to sleep depending on the temperature, here’s our guide to what your baby should wear at night, so both you and your baby can (hopefully) get a peaceful night’s sleep.

Check your baby’s room temperature

The temperature of your baby’s room is the biggest indicator as to what your little one should be dressed in when it’s time for bed. According to The Lullaby Trust, your baby’s room should be kept between 16-20°C. At this temperature, your baby should wear a vest, sleep suit and have a lightweight sleeping bag.

The best way of checking your baby’s room temperature is using a baby room thermometer in your baby’s room. This will help you determine what they should wear at night. We’re huge fans of the Tommee Tippee GroEgg2, a nightlight and thermometer in one, which glows different colours according to the temperature of your baby’s bedroom.

What should my baby wear to bed?

When it comes to dressing your little one, remember that simple is safest. Babies do not need to sleep under a duvet until they are much older. Don’t overdo the blankets as little legs can kick loose blankets off, so if you can, try to avoid using them and use swaddles or sleep bags instead.

Your little one will also need more layers depending on how cold it is. Always start by dressing your little one in a vest, as this is all they would need to wear if the temperature is above 25 degrees. You can then pop them in a swaddle or sleep bag to keep them cosy.

If it’s below 20 degrees, layer up your newborn with a sleepsuit. It’s important to remember not to dress your baby in a hat or gloves for bedtime, even in cold weather, and during the summer months don’t overdress them, as this can increase the risk of Sudden Infant Death Syndrome (SID).

Here’s our useful temperature guide to help you dress your baby safely for bed in different temperatures.

what baby should wear to bed infographic

As you’ve probably gathered by now, a baby sleeping bag is a real essential. To help you find the right ones for your tot, check out our guide: to choosing the right baby sleeping bag.

Read more: How to swaddle a baby: Step-by-step guide and safety

How to dress your baby in hot temperatures

• Take away any layers – one layer should be enough for your baby.

• Look for thinner fabrics like a thinner sleep bag or vest.

• During the day, make sure your baby’s head is covered, they’re kept out of direct sun and that they wear a pair of sunglasses if possible to avoid overheating.

How to dress your baby in cold temperatures

• Layer up with cotton layers, like a vest, sleep suit and sleep bag as heat will be trapped between these layers.

• In the day, make sure they are wearing mittens, gloves, hat if needed.

• Don’t forget about blankets on your daily walks.

How do I know if my baby is too hot?

To check if your baby is too hot, The Lullaby Trust say to “put your hand on the skin on their chest or the back of their neck.”

Other signs your baby is too hot are:

• Damp hair

• Flushed cheeks

• Rapid breathing

• Heat rash

If your little one feels hot to touch, start by taking a layer off of them and check them again in 10 minutes. You can always open a window slightly to help air circulate, too. When checking to see how hot your baby is, remember not to check their hands or feet as these are often a lot cooler than the rest of their body.

Baby clothes for temperature, from extreme heat to cold weather

Bebekish Baby Dino Organic Baby Sleepsuit


Super soft organic cotton and stretchy sustainable bamboo fabric allows your little one to move freely while keeping them cool at night. Bamboo regulates the body temperature of little ones so that they can have a good sleep. Organic cotton products are softer and safer for the skin, as the fibres are much longer, compared to regular cotton.
Bebekish also sell a range of 100% bamboo muslins, perfect for swaddling.

JoJo Maman Bebe Elephant print sleepy sac

JoJo Maman Bebe Elephant print sleepy sac

This elephant print sleep sac is both comfortable and adorable, keeping little ones safe and feeling secure. You can even have the sleep sac personalised with your little ones names!

3-pack cotton pyjamas


These footless all-in-one pyjamas made with soft organic cotton jersey will keep newborns cosy at night when sleeping safely in their cot. Also available in other designs.

Mini Cuddles Baby Little Cutie Sleepsuit in Pink


Featuring the cutest ballerina bunny, this ‘Little Cutie’ sleepsuit is an affordable option that your little one can wear to bed. Suitable for newborns with sizes up until 12 months, this long-sleeved sleepsuit has poppers for easy access when changing and is made from 100 per cent cotton for their delicate skin.

Baby Mori Ribbed Frill Clever Zip Sleepsuit

two-way-zip sleepsuit

Beautiful and made from organic materials for the softest and safest sleep. This pretty sleepsuit features a clever two-way zip down the front for easy nappy changes during the night.

Tommee Tippee The Original Grobag

Tommee tippee the original gro bag

This Ollie the Owl GroBag is perfect for little ones to sleep in at night, as you won’t have to worry about your baby kicking off their blanket. Available in different tog sizes to suit different weather.

Baby Mori Newborn Swaddle Bag

Baby Mori Newborn Swaddle Bag

Suitable for newborns from 15 days up to 3 months, babies will feel comfortable and safe in the newborn swaddle bag. Made from bamboo and organic cotton, the soft material is gentle on little ones skin and is allergy friendly. It’s a safe and comforting way of replicating the womb’s natural cuddle.

5-pack cotton bodysuits

Baby sleep vests

It’s a great idea to have a good stock of sleeveless vests for your baby, especially in the summer and those warmer months. These are made from a soft cotton jersey so are nice and soft against baby’s skin and come with press-studs at the crotch for easy nappy access. We love the neutral tones of this pack but this pack also comes in three other colour ways if you fancy something more colourful.

7pk Pure Cotton Short Sleeve Bodysuits (5lbs-3 Yrs)

short sleeve suits

Sometimes, nothing beats a simple white vest for your baby. These body suits are not only great for summer sleeping, but they’re great for layering in the winter months too. These baby bodysuits have been cleverly designed with flat seams to prevent irritation as well as easy poppers.

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