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Best Cooling Duvets

Best Cooling Duvets UK (2023)

Last updated: 31.10.2023 Reading time: 12 Min.

Are you struggling with night sweats or the summer heat? 🥵

We have just the thing to help: cooling duvets!

Take the summer heat down a notch with a duvet designed to keep you cool and comfy all night.

In this article, we take a look at how to find the best duvets for hot sleepers so you can sleep comfortably again.

Let's dive into the best cooling duvets on the market.

woman sleeping with cooling duvet

The best cooling duvets in the UK

Great For Allergies

Silentnight Cooler Summer Duvet

The Silentnight Cooler Summer Duvet is a breathable duvet with a hollow fibre filling and microfibre cover.

With its optimal 4.5 tog filling, this duvet is specifically designed to keep you cool throughout the hotter months. 

This Silentnight duvet is a great lightweight duvet if you struggle with the summer heat and allergies.

The Cooler Duvet has a hollow fibre filling known for its breathability and hypoallergenic capabilities. 

If you find yourself sneezing with a down duvet, hollow fibre is an excellent alternative for allergy sufferers

The hollow fibre filling and microfibre cover allow heat and sweat to escape, keeping you dry and cool throughout the night.

But if you have a particularly bad hot flash one night, this duvet is machine-washable, so you can easily clean it the next day. 

Silentnight offers a 5-year manufacturer's guarantee, providing some added assurance if you notice any problems with your duvet over time. 


  Silentnight Cooler Summer Duvet
Cover composition: Microfibre
Filling composition: Hollowfibre 
Tog rating: 4.5
Machine washable: Yes
Customisable Comfort

Simba Simba Hybrid 3-in-1 Duvet

The Simba Hybrid 3-in-1 Duvet is actually a set of two duvets with tog ratings of 3.5 and 7 that can be combined to form a third 10.5 tog duvet.

This premium duvet is a convenient solution for year-round comfort.

The Simba Hybrid 3-in-1 Duvet is a premium product that's been designed with active cooling and year-round use in mind.

simba hybrid 3-in-1 duvet is three duvets in one
This duvet set actually features two separate duvets that can be combined.

This product is actually a duvet set that includes two separate summer winter duvets:

  • One 3.5 tog summer duvet 🌿
  • One 7 tog spring/autumn duvet 🍁

These two duvets can be clicked together through convenient snap buttons to create one 10.5 tog winter duvet.

The materials used in the Simba 3-in-1 duvet

The duvet is filled with Simba Renew Clusters, synthetic fibres made from recycled PET bottles. 🧴

These fibres are combed together into soft and fluffy clusters that function as a synthetic alternative to feather and down.

Simba Renew Clusters trap heat efficiently to keep you warm and comfortable, but they're also exceptionally breathable to avoid overheating. 

simba hybrid 3-in-1 duvet is very fluffy
The Simba 3-in-1 is a very fluffy, lightweight, and comfortable duvet.

Together with the innovative cooling Stratos technology and ultra-breathable cotton and Modal, the Simba 3-in-1 duvet has all the features to allow for effective temperature regulation. 

Effective temperature regulation

The top covers of both duvets are infused with active Stratos technology. ❄️

These phase-changing micro-capsules store heat when it's hot and release heat with it's cold, meaning they can adjust to your body temperature and respond accordingly.

A faint hexagonal pattern marks the side of the cover that features Stratos.

For better temperature regulation, it's advised to sleep with the Stratos side closer to your body. 

simba 3-in-1 duvet stratos
Stratos is a phase-changing technology for responsive temperature control.

When the two separate duvets are snapped together, the summer side will feature the geometric Stratos pattern on the outside, and the winter side will feature the standard cotton on the outside. 🤩

Making one duvet from two

Snapping the two separate duvets together is super easy.

simba 3-in-1 duvet together with different coloured piping
Click the two duvets with different coloured piping together using the snap buttons.

You can identify which duvet has which tog rating by looking at the piping and the labels. 

  • The 3.5 tog has a cover with blue piping. 🔵
  • The 7 tog has a cover with grey piping. 🌑

Choose which duvet you want to sleep with depending on the season, or click the two together with the sturdy snap buttons located along the edges of both duvets to create a thicker, warmer duvet. 

Machine-washable comfort

Conveniently, the Simba Hybrid 3-in-1 duvet is fully machine-washable at 40℃. 💦

It can even be tumble-dried on a low-heat setting.

It's also made from hypoallergenic materials, making this duvet an excellent choice for people struggling with allergies or otherwise concerned about hygiene. 

Receiving your duvet

The Simba 3-in-1 duvet is delivered in a convenient storage bag (wrapped in a plastic cover for protection during delivery).

simba hybrid 3-in-1 duvet in storage bag
The duvet is delivered in a convenient storage bag made from recycled materials.

The bag can be re-used to store whichever duvet you don't happen to be using.

Delivery is free within the UK, and you'll receive your product within 3 working days.

On the downside, there is no trial period, and the duvet only comes with a 1-year guarantee. 😕


  Simba Hybrid 3-in-1 Duvet
Composition: Simba Renew Clusters with 100% BCI cotton, Stratos technology, and Modal
Cover: One side is made of 100% BCI cotton with Stratos, and the other side is made of a Modal-cotton blend
Tog rating: 3.5 and 7 togs (can be joined to create one 10.5 tog duvet)
Washing instructions: Machine-wash at 40°C and tumble-dry on low
Guarantee: 1 year
What makes this duvet special? The duvet has been designed with active cooling in mind and can be used year-round.   

Emma Cloud Duvet

The Emma Cloud Duvet is a microfiber duvet made of temperature-regulating fibres to keep you cool and refreshed throughout the night.

This 6.7 tog temperature-regulating duvet is perfect for any season.

Crafted from microfibre, the Emma Cloud duvet offers a cloud-like feeling of comfort and cosiness.

With a tog rating of 6.7 and the ability to regulate temperature, it is a reliable choice for all seasons.  

It's not the most affordable duvet on the market, but it's also not the priciest.

When it comes to value for money, Emma's frequent discounts can help sweeten the deal. 💰

holding emma duvet
The Emma Cloud duvet is soft and cosy. 

You'll appreciate its machine washability (up to 60°C), making maintenance a breeze. 

With free delivery in just 2 - 7 working days, the Emma Cloud duvet arrives at your door with minimal fuss.

Should you need to send it back, their simple return process is completely free of charge. 🚚

Plus, the duvet comes with a 14-night sleep trial

If you're a hot sleeper seeking a light, breathable, and easy-to-care-for duvet, the Emma Cloud duvet could be a superb fit for you. 🌡️


  Emma Cloud Duvet
Composition: 100% microfibre polyester
Cover: Polyester
Tog rating: 6.7
Trial period: 14 days
Guarantee: /
What makes this duvet special? A unique 14-day sleep trial is included with this duvet.

Fogarty Extra Cool 1 Tog Duvet

The Fogarty Extra Cool 1 Tog Duvet is super lightweight and easily accessible on Dunelm.

This duvet is perfect for those looking for an affordable solution to the summer heat.

The Fogarty Extra Cool 1 Tog Duvet is an extremely lightweight duvet with a recycled polyester filling and a soft microfibre cover.

It is machine washable, so you can easily clean it after a heatwave or hot flash. 

Polyester is an affordable and hypoallergenic material, but it doesn't offer the same breathability as other materials, like down or hollow fibre. 

This duvet is made from 100% recycled materials and is certified with the MADE IN GREEN by OEKO-TEX® label, so you know it was made with the environment in mind.

The Fogarty Extra Cool 1 Tog Duvet is closer to a blanket than a duvet.

It is a great option if you're too hot for the weight of a duvet in the summer months but still like the feeling of a duvet covering you. 

Fogarty is sold on Dunelm with quick delivery and free returns. 


  Fogarty Extra Cool 1 Tog Duvet
Cover composition: Recycled microfibre
Filling composition: Recycled polyester
Tog rating: 1
Machine washable: Yes

How we test products

Our mission is to take the guesswork out of finding the perfect sleep products.

We've dedicated hundreds of hours to testing mattresses and sleep accessories, and rely on a team of testers of differing weights, temperature preferences, and sleeping positions to evaluate each product. 

Tested products are granted the Sleep Hero tested stamp of approval, a mark of our review's reliability.

To learn more about our testing process, check out our methodology page.

If we haven't personally tested a product, please be assured that we invest significant time and energy into scouring the UK market and researching the best recommendations, and we work with a team of sleep experts who review our articles, ensuring that the insights we provide are not only relatable but also reliable.

Are cooling duvets actually cooling?

Many brands advertise a duvet as 'cooling' if it has a lower tog rating or breathable material, like down or microfibre.

The premium brands also use innovative technology, like Stratos, to improve the temperature-regulating capabilities of the duvet.

We get into this further down.

However, for the most part, these duvets do not provide an instant cooling sensation like having a cold shower or putting an ice pack on your forehead.

Instead, they are designed to prevent overheating so you don't wake up dripping in sweat.

How do cooling duvets work?

Cooling duvets might not provide an instant cold sensation, but they do help to regulate your temperature at night.

Here are a few features that help cooling duvets do their job.

Cooling technology

Some of the best cooling duvets (UK) utilise patented thermo-regulating fabrics, adapting to your body temperature so you stay cool.

Advanced technology allows the duvet to adjust its heat absorption and dissipation properties, creating a balanced sleeping environment.

You could even have a duvet that takes cues from NASA spacesuits. 🧑‍🚀

Certain cooling duvets incorporate Stratos®, a material originally developed by NASA for use in spacesuits.

This incredible material can absorb excess body heat and then release it back to you if you start feeling chilly.

astronaut in space
If it works for astronauts, it could work for you!

This space-tech-inspired innovation makes the duvet highly versatile and suitable for year-round use regardless of the weather.

Our recommended Simba duvet uses this space-inspired technology!


Lightweight tog

One of the key features of cooling duvets is their lightweight tog rating.

Tog refers to the measure of thermal resistance in a duvet, determining its warmth level. 🔥

Cooling duvets are typically designed with a lower tog rating, allowing for enhanced breathability and heat dissipation.

The lower tog also provides a lightweight and comfortable feel, giving you a more refreshing sleep.

We recommend the Fogarty Extra Cool Duvet with a one tog rating if you're an extra hot sleeper.



Both natural and manmade cooling duvets offer excellent breathability.

But how exactly do fabrics breathe? 🫁

Well, it's not in the human sense, that's for sure!

When it comes to fabrics, breathability means the fabric's ability to allow water vapour to pass through the material and evaporate from the other side.

This keeps your skin dry and your body temperature down while you're under your cooling duvet.

Natural materials such as cotton and bamboo are known for their moisture-wicking properties that absorb your sweat all night.

man under cooling duvet
Get a good night's rest in a dry environment that wicks away your sweat.

Equally, manmade materials like microfibre often have superior cooling technology that promotes airflow to keep your skin dry while sleeping.

Ultimately, the choice between natural and manmade materials comes down to personal preference and budget.

Machine washable

If you're a sweaty sleeper, a machine-washable cooling duvet cover and insert is an absolute essential.

Luckily, many cooling duvets are designed to be easily washable, so you can keep them fresh and hygienic.

Bear in mind you should only wash your duvet once or twice a year unless you spill something on it.

Before washing, be sure to check the care instructions provided by the manufacturer to ensure you're following the recommended cleaning process.

Annual washing eliminates sweat and odour and helps maintain the duvet's cooling properties over time.

What is the best cooling duvet material?

The composition of your duvet can make a huge difference to its cooling properties.

Here are some of the most popular materials for the insert and cover of cooling duvets.


Some of the best cooling duvet covers are made from microfibre.

It's popular because of its super soft and smooth texture.

It is a synthetic fabric made from finely woven polyester fibres, which create a lightweight and breathable duvet cover.

Microfibre cool duvet covers are known for their excellent moisture-wicking properties, helping you keep cool and dry throughout the night.

Additionally, microfibre is generally easy to clean and maintain and has anti-allergy properties.

We recommend the Silentnight Cooler Summer Duvet if you want an anti-allergy or goose-down alternative duvet.


Hollow fibre

Hollow fibre makes one of the best cooling duvet inserts.

It is a synthetic filling material with great breathability and temperature regulation.

It consists of hollow polyester fibres that trap air, creating a lightweight, insulating layer.

pros and cons of hollowfibre duvets
Weigh up the pros and cons to decide if hollow fibre is right for you.

Hollow fibre duvet fillings are known for maintaining a comfortable sleeping temperature by allowing excess heat to escape while retaining warmth when needed.

Hollow fibre duvets are often hypoallergenic and easy to care for, making them a practical choice for those with specific needs.


Cotton is a classic and widely beloved fabric for duvet covers.

Cotton allows air to circulate and prevents heat buildup so you can sleep in a cool sleep environment.

If you’re looking for a cotton cover to go over your duvet, make sure it is 100% cotton and not cotton sateen.

Sateen has a thicker weave and is better for the cooler months.

Cotton covers are highly absorbent, effectively wicking away moisture and providing a comfortable feel against the skin.

Moreover, cotton is a natural and hypoallergenic material, making it an excellent choice for individuals with sensitive skin or allergies.


Polyester is another commonly used synthetic filling material in cooling duvets.

It is known for its affordability, durability, and easy maintenance.

Polyester duvet fillings provide a lightweight, hypoallergenic option, allowing for adequate air circulation and effective temperature regulation.

While polyester may not offer the same level of breathability as natural materials, it is a budget-friendly choice that can still provide a comfortable sleep experience.

The Fogarty Extra Cool 1 Tog Duvet features a recycled polyester filling to keep you comfy all night long.


Feather or down duvet

Down and feather fillings are sourced from birds, typically ducks or geese. 🦆

They are highly regarded for their natural insulation properties and breathability.

Down refers to the soft clusters found beneath a bird's feathers, while feather fillings come from the outer feathers.

Down and feather duvet fillings create a warm yet breathable layer that adapts to your body temperature, keeping you cosy without overheating.

However, it's important to note that some individuals may have allergies or sensitivities to these natural fillings, so consider this when selecting.

Which materials should hot sleepers stay away from?

As mentioned above, polyester is less breathable and may not perform as well as the other materials listed.

That said, polyester is still budget-friendly and lightweight, so it's worth testing if you can't afford the more expensive cooling duvets.

Other bedding to keep you cool

A cooling duvet is only one step to a comfortable night’s sleep in the summer months.

There are cool mattresses, pillowcases, bed sheets and much more to think of, too.

Cooling duvet covers UK

If you already have a duvet that you love but still want to lower your temperature, a cooling duvet cover is a game-changer.

These covers are specifically designed with breathable fabrics that promote air circulation and prevent heat buildup. 💨

Look for duvet covers made from materials like bamboo, cotton, linen or eucalyptus fibres, known for their excellent moisture-wicking properties and breathability.

Choose a cooling duvet set with a higher thread count for a more luxurious feel.

Investing in a cool duvet cover can transform your regular duvet into a cooling oasis, providing a more refreshing night’s sleep during the summer.

Cooling mattress pad

Cooling mattress toppers are a fantastic addition to your bedding ensemble, especially during hot summer nights.

These pads are typically made with advanced cooling technologies or materials that actively draw heat away from your body.

They work by dissipating excess heat and regulating your body temperature, ensuring you stay cool and comfortable.

cooling mattress topper
Try out a cooling mattress pad to stay cool at night.

Cooling mattress pads come in various forms, including gel-infused pads or those with moisture-wicking properties.

You can find them in all different sizes, from super-king to singles.

Placing a cooling mattress pad directly on top of your mattress creates a cool barrier between your body and the heat-retaining surface.

We love the Simba Mattress Topper for a night of sweat-free sleep.


Cooling pillows

While we often focus on keeping our bodies cool, we must not neglect our heads during the night.

Cooling pillows are designed to support and refresh your head and neck while keeping you cool.

pillows with cooling gel
Keep your head and neck icy cool at night.

These pillows often incorporate cooling gel or breathable materials that promote air circulation and prevent heat accumulation.

They are typically made from memory foam, which contours to your head and neck while offering pressure relief.

With a cooling pillow, you can enjoy the benefits of temperature regulation, allowing you to stay cool and sleep soundly throughout the summer nights.

We recommend the Kally Cooling Pillow to keep your head and neck dry all night long.


So, is there a duvet that keeps you cool?

Cooling duvets can be a major lifesaver if you’re going through menopause or struggling with the UK summer heat.

With cooling technology and breathable natural fabrics, these duvets are designed to regulate your temperature at night and help you get a better night's sleep.

If you're still struggling with being too hot at night, we recommend adding a cooling gel mattress pad and pillow.

What are the best cooling duvets?

Frequently asked questions

  • References

  • Why does my duvet make me sweat at night?

    There could be several reasons why your duvet makes you sweat at night. 

    One possibility is that your duvet is made from materials that trap heat and restrict airflow, such as some synthetic fabrics

    These materials can hinder the release of excess body heat, causing you to feel hot and sweaty

    If your duvet has a high tog rating, it may be too insulating for your needs, leading to overheating during the night. 

    Choosing a cooling duvet insert with breathable fabrics and a lower tog rating is essential to promote airflow and regulate your body temperature effectively.


  • How do I stay cool while sleeping?

    There are a few strategies you can try to stay cool while sleeping. 

    First, consider using bedding made from breathable fabrics like bamboo, cotton, or linen. 

    These materials allow air to circulate, preventing heat buildup. 

    You can also invest in cooling bedding accessories such as a cooling mattress pad, cooling pillows or a duvet cooling set. 

    Adjusting your bedroom environment using an air cooler or air conditioner, wearing lightweight and breathable sleepwear, and keeping your bedroom well-ventilated can also help create a cooler sleep environment.

    Finally, avoiding triggers like alcohol, caffeine, and spicy foods before bedtime can reduce the likelihood of night sweats and overheating during the night.

  • What is the coolest fabric for hot sleepers?

    When it comes to the coolest fabric for hot sleepers, natural materials like bamboo, cotton, and linen are often recommended. 

    Bamboo fabric is known for its exceptional breathability and moisture-wicking properties, keeping you cool and dry throughout the night. 

    Cotton is another excellent choice; it allows for adequate air circulation and has moisture-absorbing qualities. 

    With its lightweight and breathable nature, linen promotes airflow and helps regulate body temperature. 

    These fabrics are highly recommended for hot sleepers seeking a cooler and more comfortable sleep experience.

  • What is the best cool duvet during menopause?

    When you're going through menopause, it's common to get hot flashes throughout the night. 

    A cooling duvet can help wick away the sweat from these flashes and regulate your temperature so you can get a better night's sleep. 

    We've tested the Simba 3-in-1 Duvet and are happy to report it is a great option to combat hot flashes and night sweats as it's made from breathable cotton and Renew Clusters.

    Scroll up to learn more about the cooling properties of this duvet. 


George arkley image


Content Writer

I’m always the first person to try the latest sleep hack - whether it’s drinking coffee or counting sheep. Now, I get to write about the latest sleep gadgets, mattresses and much more in a bid to help you find the perfect night’s sleep.

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