The best all-season duvets that will keep you cosy all year round

Score: 96/100

Our winner has a luxury feel minus the hefty price tag – and with a near-perfect score, it’s certainly an investment worth making. Switch between the light 4.5 tog in summer, a combined 13.5 togs in winter, and the 9 tog for those in-between nights.

One tester described the snap studs that join the layers as “game-changing”, praising how quick it was to secure them, which is reassuring if you don't want to add more steps into your making-the-bed routine.

Even after multiple washes, this duvet kept its shape and the microfibre filling was evenly distributed. It also comes with a storage bag that “screams high quality,” according to one of our testers. In short, this is a quality year-round buy at a reasonable price.

Score: 94/100

Emma is no newbie in the world of bedding (it makes one of our best mattresses), so it's no surprise this 4-Seasons duvet performed well in our tests. Though slightly lighter than our winner (it combines a 3.5 and 7 tog duvet), it pleased our panel of testers with its quiet comfort, secure poppers, high quality design and perfect fit within their covers.

You’ve got 14 nights to try it out, with a full refund if you're not happy. But considering how well it performed with our testers, we think it will probably make it past the two-week mark, whatever the temperature.

Score: 93/100

This is another top-rated duvet with 3.5 and 7 tog layers to choose from. Both are made with Simba’s unique cooling Stratos technology, which helps to regulate body temperature. When fully combined (with 10.5 togs of warmth), it was very snuggly, but the poppers – while easy to use – weren’t the most secure, resulting in some rustling.

It maintained its premium finish after washing and drying though – so not to worry if you spill your morning coffee. Simba is also one of our top picks for sustainability creds – the filling is made with recycled bottles, and the brand is a certified B Corp.

Score: 90/100

Filled with Hungarian goose down, this luxurious duvet is a breathable and lightweight option that retains heat and fluffiness well. In fact, one tester said it “feels like a cloud” – high praise indeed.

You get a 9 tog duvet and 4.5 tog duvet, which a few testers found notably warm and weighty when combined – but with the different options, you should be able to find a solution that works for you. It even washed fairly well (something that isn’t always a given with down duvets).

The brand claims that the filling is ethically sourced and it has been accredited for responsible down standards. It also comes with a 10-year guarantee, so while it's pricey, you are getting a duvet that lasts a decade.

Score: 90/100

Whether it's summer pollen, winter dust mites, or a year-round pet allergy, an anti-allergy duvet can make a world of difference. This three-in-one option, treated with ‘HeiQ Allergen Tech’, uses probiotics to combat all the above. It worked wonders for our sniffly testers, who didn’t experience any flare-ups during use.

It kept our panel members warm and cosy, with one describing it as “like being wrapped in a cloud.” Many were pleasantly surprised by its ability to retain warmth despite its lightweight feel, which everyone agreed made it comfortable and non-restrictive to sleep under.

“I loved everything about this duvet,” said one satisfied sleeper. And with all testers agreeing they would purchase it themselves and recommend it to friends and family, we don't think you can go wrong.

Score: 89/100

Brook + Wilde has been developing wellbeing-enhancing sleep products for over 25 years, which shows in the premium craftsmanship of its products. And the higher price tag on this duvet does reflect the premium quality, according to our panel.

Both the 4.5 tog and 8 tog layers are filled with white down and feathers, encased in 100% cotton, making it a lightweight yet warm duvet.

Testers thought it made the bed look “very inviting”, and it lived up to their comfy expectations when they were tucked in. The only con (other than the price)? It will definitely make it harder to get out of bed in the morning.

Score: 89/100

If you feel a chill in the winter, then this microfibre duvet offers a cosy 15 togs when combined (one layer is 4.5 and the other is 10.5 tog). This doesn’t mean it’s too heavy though – our testers found it breathable and lightweight, and therefore easy to move around (shout out to all you wrigglers out there), without compromising on warmth.

Where this duvet shone the most, though, was in the wash test. There was no shrinkage at all, and the filling remained evenly distributed. The only downside was the packaging it came in, as it cannot be reused to store any spare parts. However, it's a snip at £41 for three duvets.

We also tested Slumberdown’s All Seasons 15 Tog Duvet, which similarly scored 89/100 and costs just £27.08.

Score: 88/100

This isn’t a two-part duvet, but we wanted to include this 10.5 tog option as it's a good alternative to help you bridge the gap between seasons. This down duvet stands out because of EarthKind's sustainability efforts, which includes taking pre-loved bedding that was destined for landfill and recycling and repurposing it into new products.

The result? Luxurious and good-as-new duvets and pillows. This duvet performed well on test too; testers said the cosy design kept them warm throughout the night. When put to test in the wash, there was some shrinkage, so you may want to dry clean it, but making the bed was effortless.

This was a little too lightweight for some during colder weather, but we also tested the 13.5 tog version (which scored 88/100) and the brand's three-in-one design (this scored 83/100 as it bunched up a little when both parts were combined).

Score: 87/100

This three-in-one duvet (which includes 4.5 tog and 9 tog layers) has a recycled polyester filling and uses 'ultrasonic' technology to seal the seams instead of thread. This creates a strong, high-quality finish that ensures no loose threads.

Testers were happy with the initial quality of the duvet and found it soft and comfortable. However, some filling began to come out of the casing after washing, so we suggest using a gentler cycle than the recommended 60 degrees. But it was genuinely cosy, and a good pick if you want something feather-free.

Score: 83/100

The idea that opposites attract is all well and good, but if you and your partner have different body temperatures at night, you’ll know it can be a struggle when it comes to good sleep.

But this half and half duvet from Slumberdown – slightly different to the other all-season options on our list – may be the solution; one half is a cool 4.5 tog and the other side is a warmer 10.5 tog. So, whoever runs hot can take the lighter side, while their partner stays cosy.

One tester who described themselves as “a lady of a certain age” said she opted for the lighter tog and found it cosy and comfortable. Many noted its quality too, and despite the different filling densities, it fitted well inside bed covers. It fared well in our wash tests too, although there was some shrinkage.