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What is The Best Duvet for Keeping Cool?

What is The Best Duvet for Keeping Cool?
What is The Best Duvet for Keeping Cool?

Choosing the best duvet to keep you at the perfect temperature at night is critical to getting a good night’s sleep. People spend a third of their lives in bed, so being comfortable and cool is essential. Being at the right temperature in bed aids in better quality sleep, so you can perform at your best during the day and feel great too.

A duvet is a soft, flat bag filled with stuffing designed to regulate your temperature while sleeping. It would help if you had a duvet to keep you warm during the colder months and cool during the summer months.

Whether you want a duvet to keep you cool on a hot summer’s night or if you’re waking up too hot at night, then a breathable, lightweight duvet will help regulate your body temperature better than a thick, dense duvet.

Here is the ultimate guide to choosing the right duvet for you and how to keep cool so you can get a comfortable night’s sleep. It can be challenging to decide on the right product when so many options are available. In this article, we explain the components that make up a duvet and how to choose the ideal one to keep your cool.

This article answers some of your bedding-related queries, including the type of duvets that keep you cool, the best kind of duvet for hot nights and what material is best for a cooling duvet.

At Bedding Comfort Store, we have a range of luxury duvets for all weather temperatures throughout the year, keeping you comfortable and cool. 

Do I Need to Change My Duvet for Summer?

Well, that all depends on several factors, including what duvet you are using, what storage space you have and how versatile you want your duvet to be.

However, there is science behind cool temperatures and sleep, as cooling down your body temperature signals to your body that it is time for sleep. Having a thick duvet that doesn’t allow for breathability during warmer months, or if you’re a naturally hot sleeper, you might not get the best quality of well-deserved rest you need.

The tog rating indicates how well the duvet insulates heat. The higher the tog, the warmer the duvet.

Here is your guide to choosing the best tog rating all year round,

  • 5-4.5 for warmer nights in summer,
  • 5-10.5 for milder nights in spring and autumn,
  • 5-15 for cold winter nights,
  • 5 is a good all-rounder if you want a duvet with some flexibility,
  • 5 is a good all-rounder for children as they can overheat more easily than adults.

Investing in a different tog duvet to mirror the temperature outside is the best option for a comfortable night. Choosing a lightweight duvet for summer means you can store away your thick winter duvet for colder nights and adjust accordingly to the seasons throughout the year.

 If you don’t have the storage space or for a cheaper option, investing in an all-rounder, with an average tog rating of around 10.5 and 4.5 for children, will allow for more prolonged use in average UK weather.

Duvet Materials

It’s not just the tog rating you must consider when choosing the perfect duvet to give you a great night’s sleep. Consider the material of the duvet too.

The duvet casing is the first thing you feel when touching a duvet. Duvet cases are usually made from cotton, polyester, polypropylene and microfibre.

The filling of the duvet is what’s most important, though, and it determines the duvet’s warmth, thickness, weight and breathability. There are two types of duvet fillings, natural and synthetic. Within those categories, there are further subcategories of different materials.   

Natural Duvet Fillings

Down and Feather Duvets

Duvet is a French word meaning ‘down’ in English. Traditionally a duvet is filled with down – the soft, light layer found underneath fowl feathers such as ducks and geese. This natural material is an excellent insulator, durable and cosy.  

Feathers from ducks and geese are also used, which is a similar alternative to down, except that they can be slightly heavier than down duvets but have the same insulating properties. Most duvets have a mixture of down and feathers to provide warmth whilst keeping them lightweight.

Down and feather duvets are the most popular natural duvet fillings. However, these duvets aren’t suitable for vegans as animal products are used to make them. Check the label or packaging to ensure the down used is ethical and adheres to The Reasonable Down Standard.

Other Natural Fibres

Other options for natural fibre duvets don’t contain duck or goose feathers. Manufacturers use materials such as wool, eucalyptus silk and even bamboo to create breathable, comfortable duvets without using plastics.

Silk duvets aren’t widely available but are a very lightweight and durable duvet filling. The chunky woollen structures mean it traps air, providing excellent temperature regulation.

Wool duvets are more readily available, and they’re durable and hypoallergenic.

Natural duvet fillings are lightweight, breathable and excellent temperature regulators, and they’re biodegradable.

Synthetic Duvet Fillings

There are two types of synthetic fibre duvet fillings, hollowfibre and microfibre.


Fibre duvets are filled with synthetic fibres, making them an excellent choice for people with allergies. Designed to replicate down but without the feathers, these synthetic duvets are usually made with polyester.

Fibre duvets are a popular choice because they’re cheaper, hypoallergenic and people who don’t want to use animal products can dream easily with a synthetic duvet.

Hollowfibre vs Microfibre Duvets

Hollowfibre and microfibre refer to the space between the fibres in the duvet.


Hollowfibre duvets have space between the fibres, making them a lighter and more breathable fabric. Hollowfibre duvets are better for the summer months when the nights are warmer, helping to keep you cooler.

The fibres have a single hole down the centre that traps air, making the fibres lightweight and excellent for retaining heat.


As the name suggests, microfibre duvets allow minimal space between the fibres, creating a tightly woven fabric. These denser duvets are designed to keep you warm during the colder winter months. The threads are finer than human hair and are intended to replicate natural down.

Synthetic duvet fillings aren’t recommended if you’re a hot sleeper or have night sweats because they’re less breathable than natural fibres. However, synthetic fibres can be manufactured to various lengths and thicknesses, so options are available for cooler synthetic duvets.

What Type of Duvet Keeps You Cool?

Suppose you’re a hot sleeper or looking to invest in something cooler as the weather starts to warm up. In that case, you need to pack away your thick, warm duvet and invest in something more lightweight and breathable.

When choosing a duvet to keep you cool, first consider the tog rating of the duvet. Remember, the higher the tog, the warmer the duvet. A duvet with a tog rating of 1.5-4.5 is ideal for summer, so choosing between those ratings depends on personal preference.

Consider the temperature of the bedroom you sleep in and the other bedding components that make up your ensemble. The lightest duvet is the 1.5, with the 4.5 being the warmer end of the cool duvet tog rating. For example, if you have a mattress protector, this can affect heat transference or if you have extra light blankets on your bed.

The second thing to consider is the type of material the duvet is made from. As you know, two kinds of duvet fillings are natural and synthetic. Decide which is the best route for you and whether you’re comfortable using animal products or investing in a duvet that incorporates environmentally friendly materials.

We recommend choosing a duvet that has a cotton casing as it’s breathable, temperature regulating and sweat-wicking. Natural duvet fillings are soft, fluffy, and more breathable than synthetic ones and are, therefore, cooler duvets.

Naturally filled duvets using goose or duck feathers have better thermal insulation than synthetic duvets. This means you don’t need as much filling to achieve the same tog rating, making them lighter duvets.

Bedding Comfort Store

We are experts in providing comfortable bedding so you can get the best night’s sleep. We have an expert guide to duvets and duvet options to suit everyone and every season throughout the year.

The Bedding Comfort Store also stocks pillows, bed linen, mattress toppers, cushions and much more to give you the best experience while you sleep.

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