Buy Duvets Online at the Best Price from iStyle Mode
A duvet decides how well you sleep more than almost anything else in your bedroom. iStyle Mode stocks duvets in five fillings, goose feather, duck feather, microfibre, corovin, and poly cotton, across four standard UK sizes. Every duvet we sell is manufactured to British Standard 5335, the standard used for hotel and commercial bedding, so you get hotel-grade construction without paying hotel-brand prices. Below you'll find each type explained, a size guide, a tog guide, and answers to the questions people ask most before buying a duvet.
Shop Duvets by Type Available at iStyle Mode
Goose Feather Duvets
Goose feather duvets use natural goose feather and down as their filling. Feathers and down trap warm air between them, giving a soft, traditional feel that many people associate with high-end hotel bedding. Down alone is a very efficient natural insulator, which is why goose feather and down duvets tend to feel light for how warm they are. This is the most premium filling iStyle Mode stocks. Because it's a natural filling, it needs dry cleaning rather than a home wash. Shop the full goose feather duvets range for available togs and sizes.
Duck Feather Duvets
Duck feather duvets work on the same principle as goose feather, natural feather and down trapping warm air, but duck feather tends to be denser and slightly heavier than goose. It's a popular first choice for anyone moving from a synthetic duvet to a natural one, and it's iStyle Mode's best-reviewed duvet range. Like goose feather, duck feather and down duvets should be dry cleaned rather than machine washed at home. Browse the duck feather duvets collection to see current togs and sizes.
Microfibre Duvets
Microfibre duvets use a synthetic filling engineered to copy the softness of natural down without using any animal-derived material. The hollow fibres trap air in a similar way to natural down, giving a comparable feel while remaining fully machine washable at home. This makes microfibre a practical choice for allergy sufferers, children's bedrooms, and anyone who wants an easy-care alternative to natural fill. See the full microfibre duvets range for available options.
Corovin Duvets
Corovin duvets use a synthetic filling held in place with channel stitching, parallel stitched lines that stop the filling shifting or clumping to one end. This keeps the duvet's warmth evenly spread wash after wash. It's the most affordable filling iStyle Mode stocks, which makes it a practical choice for guest rooms, student accommodation, or anywhere several duvets are needed at once. Explore the corovin duvets collection for current sizes and togs.
Poly Cotton Duvets
Poly cotton duvets combine a cotton-polyester blend outer cover with a synthetic filling. The cotton content improves breathability compared to a fully synthetic cover, while the polyester adds durability and keeps the price accessible. It's a good middle-ground choice for warm sleepers who still want an easy-care, machine washable duvet. See the poly cotton duvets range for full details.
Shop Duvets by Size at iStyle Mode
Single Duvets
Single duvets measure 135cm by 200cm and are designed to fit a single bed. They're a common choice for children's bedrooms, guest rooms, and student accommodation where a full double duvet isn't needed. See the full single duvets range across all five fillings.
Double Duvets
Double duvets measure 200cm by 200cm, matching a standard UK double bed. This is the size most commonly bought for couples or single sleepers using a double bed. Browse the double duvets collection to compare fillings and togs.
King Size Duvets
King size duvets measure 225cm by 220cm or 230cm by 220cm, depending on the product, and are designed for king-size beds. Some double-bed sleepers also choose a king duvet deliberately, for extra fabric to move around under without pulling the duvet away from the other side of the bed. See the king size duvets range for available options.
Super King Duvets
Super king duvets measure 260cm by 220cm, giving full coverage on the largest standard UK beds. If your mattress is super king size, this is the size to match it, rather than sizing down for cost, since a mismatched duvet will leave the edges of the bed uncovered. Browse the super king duvets collection.
Select the Best Duvet for Your Sleep Needs
Duvets for Allergy Sufferers
If you or anyone in your household reacts to natural feather and down, a microfibre duvet is generally the safer option. The synthetic filling doesn't carry the same allergen risk as natural fill, and because it's fully machine washable, it's easier to keep clean and allergen-free over time than a dry-clean-only alternative.
Duvets for Hot Sleepers
Anyone who tends to sleep warm regardless of the season should start with a lower tog rather than a specific fill type, our 4.5 tog options across microfibre and poly cotton are the lightest we stock. Poly cotton's cotton-blend cover also helps with breathability if overheating at night is a regular issue.
Duvets for Guest Rooms and Budget Buyers
For a guest room, a rental property, or anywhere you need several duvets at once, corovin duvets are the most cost-effective option in the range. The channel-stitched filling holds its shape well between uses, which matters when a duvet isn't being aired or checked on regularly between guests.
Duvets for a Traditional, Natural Feel
If you want the classic feel of a natural-fill duvet, goose feather or duck feather and down is the right starting point. Both give the soft, traditional loft associated with natural fill, with goose feather generally considered the lighter, more premium of the two.
Easy Duvet Buying Guide
Use this checklist before choosing a duvet:
- Decide between natural and synthetic fill. Natural fill (goose or duck feather and down) gives a traditional, soft feel but needs dry cleaning. Synthetic fill (microfibre, corovin, poly cotton) is fully machine washable and safer for allergy sufferers.
- Choose your tog rating based on your room, not just the season. See the tog guide below for details.
- Match the size to your mattress, or go one size up if you'd like extra fabric over the edges of the bed.
- Check the certification. Look for BS 5335 as a sign the duvet meets the British Standard for hotel and commercial bedding manufacturing.
- Check the care instructions before you buy, not after, especially if you don't have easy access to dry cleaning for a natural-fill duvet.
- Read genuine customer reviews for the specific product, tog rating and fill can behave slightly differently between ranges.
Duvet Tog Guide: Pick the Right Warmth
Tog measures how well a duvet holds warmth. It doesn't measure weight or thickness, only how well the duvet traps heat, which is why two duvets at the same tog can still feel different depending on the fill.
4.5 Tog:
Suits summer nights, or anyone who sleeps warm year-round. Available in corovin, microfibre, and poly cotton.
10.5 Tog:
Our most popular tog. Suits spring, autumn, and mild winters. Available in corovin, duck feather & down, goose feather & down, microfibre, and poly cotton.
13.5 Tog:
Suits colder rooms or colder months. Available in corovin, duck feather & down, goose feather & down, microfibre, and poly cotton.
15 Tog:
Our warmest option, for cold houses or anyone who still feels cold under a 13.5 tog duvet. Available in corovin and poly cotton.
The right tog depends on your room as much as the time of year. A well-insulated room may stay comfortable on a lighter tog through most of winter, while a colder or draughtier room may need a heavier tog even outside the coldest months. Some people keep two duvets rather than one, a lighter one for summer and a heavier one for winter, rather than relying on a single tog all year round.
Why Choose iStyle Mode for Your Duvets
Every duvet iStyle Mode sells is manufactured to British Standard 5335, the standard used for hotel and commercial bedding in the UK. This standard covers how a duvet is made, including the outer fabric used. Our duvets use a cotton outer fabric with a thread count of 233 or higher, the same fabric density used in duvets supplied to the hotel trade.
This doesn't mean our duvets are the exact duvets used in hotels, hotel suppliers generally sell directly to the hospitality trade rather than to individual households. What it means is that our duvets are made to the same manufacturing standard, checked against a named British Standard, rather than described as "hotel quality" with nothing behind the claim.
We sell directly, which is how we keep prices accessible without lowering the specification. You'll also find genuine customer reviews on every product page, so you can see real feedback before you buy, not just our own description of the product.
How to Care for Your Duvet
How you look after a duvet depends on what filling it has.
Microfibre, corovin, and poly cotton duvets use synthetic fillings and can be washed in a home washing machine. Always check the care label on the specific product for the exact wash temperature. Tumble drying on a low heat, with a couple of clean tennis balls or dryer balls added, helps stop the filling clumping as it dries.
Goose feather and duck feather duvets should be dry cleaned rather than machine washed at home. Feathers hold natural oils that keep them soft and warm, and a home wash can strip these oils out and cause permanent clumping.
Whatever filling you own, shaking the duvet out each morning helps keep it evenly spread, and airing it outdoors occasionally lets trapped moisture escape.
You May Also Need
A duvet works best alongside the right pillows, mattress topper, and duvet cover. iStyle Mode stocks a full range of pillows, mattress toppers, duvet covers, and mattress protectors, so you can put together a full bedroom set in one place. If you're shopping for a toddler's bed rather than a full-size one, our cot duvets are sized and tog-rated specifically for younger children.
