Best King Size Duvets of 2025

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King size duvets provide a comfortable and warm sleeping experience for those who prefer a larger bed. These duvets are typically sized to fit a king-sized bed and are available in a range of materials, weights, and colours. They are designed to provide warmth and comfort during the colder months, while also being breathable to prevent overheating during warmer weather. King size duvets are a great investment for anyone looking to upgrade their bedding and improve their quality of sleep.
At a Glance: Our Top Picks
Top 10 King Size Duvets
Siebenschläfer King Size All Year Duvet
The Siebenschläfer All Year Duvet is designed with your health and comfort in mind. It is free of harmful substances, ensuring a safer sleeping environment. Regular washing is made easy as you can clean it at high temperatures of 95°C, enhancing hygiene for a more refreshing sleep. This duvet is versatile too, as it can be used all year round in varying bedroom temperatures, thanks to its 10.5 Tog rating. Enjoy a cosy and healthy night's sleep with this well-crafted duvet.
Silentnight King Size Duvet - All Year Round Comfort
The Silentnight King Duvet offers you the luxury of 5-star comfort every night. With its soft embossed covers, you can enjoy a snug and restful sleep. This 10.5 tog duvet is perfect for all year round, providing warmth during chilly seasons like spring and autumn. Designed to be hypoallergenic, it ensures a gentle touch on your skin while reducing the risk of allergies. Plus, being machine washable means you can keep it fresh and fluffy with ease.
Hafaa King Size 10.5 Tog Duvet
The Hafaa 10.5 Tog Duvet is designed for year-round comfort, available in various sizes to fit any bed. With multiple TOG ratings, you can choose the perfect warmth for each season, ensuring a restful night's sleep. Crafted from durable hollow fibre filling, it provides exceptional coziness and long-lasting comfort. Additionally, being hypoallergenic, it is ideal for allergy sufferers, promoting healthier sleep without the hassle of dust mites.
Slumberdown Chilly Nights 15 Tog King Duvet
The Slumberdown King Duvet is your perfect companion for chilly nights. With a 15 tog rating, it offers exceptional warmth, allowing you to stay cosy even in the coldest weather. The thick and heavy design helps lower your thermostat at night, potentially reducing your energy bills. Its soft touch cover and super soft hollowfibre filling ensure a comfortable sleep experience. Plus, being hypoallergenic, it protects you from common allergens, ensuring you wake up refreshed and symptom-free.
Slumberdown Cosy Nights King Size Duvet
The Slumberdown King Size Duvet offers a perfect balance of comfort and breathability, ensuring you enjoy a snug night's sleep all year round. With its 10.5 tog rating, it keeps you warm during chilly nights while remaining light enough for milder weather. The soft touch cover enhances your sleeping experience, wrapping you in a cosy embrace. Additionally, its hypoallergenic properties mean you can wake up refreshed without the worry of allergy symptoms, allowing you to enjoy restful nights.
Silentnight Ultrabounce 13.5 Tog King Duvet
The Silentnight Ultrabounce Duvet offers ultra-bouncy comfort with its unique filling that springs back into shape, ensuring you enjoy a restful night’s sleep. With a 13.5 tog rating, this duvet keeps you warm and cosy during the colder months of Autumn and Winter. It is also hypoallergenic, making it ideal for those with sensitive skin or allergies, as it contains no allergens. Furthermore, you can easily maintain its freshness since it is fully machine washable, providing convenience for your busy lifestyle.
Hotel Quality Microfibre King Duvet 13.5TOG
The Sleep Easy King Duvet is crafted from pure luxury microfibre, ensuring a soft and comfortable sleep experience. With a generous 13.5TOG warmth rating, it is perfect for colder winter nights, providing you with the cosy comfort you desire. The duvet's cover is made from 100% luxury peached microfibre, which feels gentle against your skin. Filled with 100% polyester bi-component conjugate, it offers excellent insulation while remaining lightweight, allowing you to enjoy a restful night's sleep without feeling weighed down.
Slumberdown 13.5 Tog King Size Duvet
The Slumberdown King Size Duvet is perfect for winter nights, providing you with extra warmth and comfort during the chilliest evenings. Its 13.5 tog rating ensures that you stay snug and cosy, while the ultra-soft filling mimics the luxurious feel of down, making your sleep experience delightful. Being made in Britain means you can trust in its quality and craftsmanship. Additionally, the hypoallergenic materials help reduce allergens, ensuring you enjoy a clean and restful night’s sleep.
Silentnight Deep Sleep King Duvet 10.5 Tog
The Silentnight Deep Sleep Duvet offers a luxurious sleeping experience with its generous filling designed to help you sink into deeper sleep. With a 10.5 tog rating, it is perfect for all seasons, providing warmth without overheating. This duvet is hypoallergenic, ensuring it is gentle on your skin and suitable for those with allergies. Additionally, it is fully machine washable, allowing you to maintain a fresh and clean duvet with ease.
Utopia Bedding King Size All Season Duvet
The Utopia Bedding Duvet offers a plush, king-size comforter measuring 220 cm x 230 cm, perfect for all seasons. With a 7.5 tog rating, you'll enjoy generous fibre filling that provides ultimate luxury and comfort during your sleep. Its durable construction, made from 100% polyester, ensures it can withstand wear and tear, making it a long-lasting choice. The stylish box-stitched design not only looks elegant but also keeps the filling evenly distributed, helping you stay cosy throughout the night.
Frequently Asked Questions (FAQs)
1. Is a 10.5 tog duvet warm enough for winter?
10.5 tog duvets are a good bet as a duvet for most of the year. The most common duvet tog you'll find is the 10.5 tog duvet – these should be warm enough all year-round if you've got a centrally heated house. If it gets a bit cold in the chilliest winter months, you can always throw a blanket over the end of the bed.
2. Should I size up in duvets?
Your duvet should be wider and longer than your mattress. But how much longer or wider depends on your mattress depth. In case of mattresses up to 8 inches tall, opt for the 12-16 duvet rule: choose duvets 12 inches longer and 16 inches wider than your bed size.
During our king size duvet research, we found 306 king size duvet products and shortlisted 10 quality products. We collected and analyzed 322,179 customer reviews through our big data system to write the king size duvets list. We found that most customers choose king size duvets with an average price of £22.58.
The king size duvets are available for purchase. We have researched hundreds of brands and picked the top brands of king size duvets, including Silentnight, Hafaa, Slumberdown, The Sleep Easy, Utopia Bedding. The seller of top 1 product has received honest feedback from 169 consumers with an average rating of 4.9.

Corey Philips is an electrician and lighting expert. He graduated from the University of Birmingham in 2012 with a Bachelor's degree in electrical and electronics engineering. Corey is a specialist contractor in lights. He sells and installs and recommends lights and lamp sheds, and other lights accessories. Aside from that, Corey is vast in installing and maintaining electrical appliances like air conditioners, water heaters, and the likes.