Duvet & Duvet Cover Size Guide

Duvet size guide with measurements provided for each duvet size. Sizes included are cot, single, double, king, super king and emperor

The main duvet sizes in the UK are as follows:

Cotbed duvets measure 120cm x 150cm, while single duvets are 135cm x 200cm. Double duvets measure 200cm x 200cm, and king-size duvets measure 230cm x 220cm. Super king duvets are 260cm x 220cm and an emperor duvet is 290cm x 235cm. Although it's common to buy a duvet that matches your mattress size, there's no hard and fast rule when it comes to choosing a duvet for an adult's bed. If you want extra coverage at night, going up a duvet size or two will give you a wider duvet - perfect if you share a bed with a duvet-snatcher. Choosing a larger duvet also means your duvet will fall deeper at the sides of your bed, which can create a more luxurious appearance. We have a wide range of duvets to choose from, such as our family-friendly Soft As Down microfibre duvets, temperature-regulating New Zealand wool double duvets and our eco-conscious Tencel fill superking duvets

What size is a cot bed duvet?

A cotbed duvet is 120cm x 150xm in the UK. These are perfect for using on cotbeds, and ideal for toddlers aged one and over. Babies under one year should never be given a duvet. Cotbed duvets are typically a lighter tog than duvets for adult beds. That's because young children are less able to regulate their body temperature as they sleep and can overheat more easily. The ideal bedroom temperature is around 18degrees centigrade. If it's colder than that, add a blanket to provide an extra layer of warmth to keep your little one snug as they sleep. Our New Zealand Wool cotbed duvet is ideal for young children - the temperature-regulating fill will help them sleep at a healthy temperature all year round. 

What size is a single size duvet?

A single duvet is 135cm x 200cm in the UK. Single duvets are perfect for single beds, but that's not their only use. They're also ideal for bed sharers who prefer different duvet weights - or who fight over the duvet at night. Invest in two single duvets - at the perfect tog for each sleepyhead - and you'll find you both sleep more peacefully. If this trick is good enough for the Scandinavians, then it's good enough for us! Wondering where to look first? Our Soft as Down microfibre single duvet is easy to care for, making it ideal for children and teens, while our Duck Feather and Down single duvets are generously filled for superb insulation and cosiness.

What size is a double duvet?

A double duvet is 200cm x 200xm in the UK. Double duvets are perfect for double beds but can also be a great choice for single beds if you want to provide some extra comfort. We have a very wide range of duvet duvets to choose from. If you're looking for bedtime luxury, our 100% Canadian Goose Down double duvet, filled with ethically sourced goose feather, is a wonderful choice. If you prefer a vegan fill, our Tencel-fill double duvet could be the perfect choice - it's filled with plant-based lyocell and recycled polyester fibres for a blissful night's sleep.

What size is a king size duvet?

A king size duvet is 230cm x 220cm in the UK. King size mattresses are designed for king size beds, however, they also work perfectly on double beds. That's because they can provide extra coverage - which can be perfect if you and your sleeping partner find yourselves playing tug of war with the duvet as you try to sleep. There's an extensive range of king size duvets for you to choose from. Our Pure Silk fill king size duvet is filled with 100% Tussah silk, to help you sleep cooler at night, and it feels luxuriously dense and cocooning on your resting body. If you'd prefer something that's loftier to the touch, our 80% Recycled Down king size duvet is filled with post-consumer used feathers which have been carefully cleaned and sorted to give them a second life. 

What size is a superking size duvet?

A superking duvet is 260cm x 220cm in the UK. Superking duvets are perfect for superking beds and mattresses, but can also be a great choice if you have a double or king size bed. The extra width of the duvet will give you and your sleeping partner extra coverage, so neither of you misses out on a good night's sleep. The wider duvet will hang further down the sides of your bed for a luxurious appearance. With so many superking duvets to choose from, you might have trouble deciding on the best duvet. Our most luxurious superking duvet is our Eiderdown superking duvet. It's exclusively made to order, filled with precious Eider down clusters, handpicked from fledged nests and cased with silk. 

What size is an emperor duvet?

An emperor duvet is 290cm x 235cm. It's the largest size duvet we stock and is designed especially for emperor size beds. Despite this, emperor duvets don't need to be limited to emperor mattresses and beds; they're a wonderful treat for anyone sleeping on a superking mattress and could also work on a king size mattress. You and your sleeping partner would have plenty of duvet to share, keeping you both snug all night long. We have a beautiful selection of high-quality emperor duvets - our 90% Hungarian Goose Down emperor duvet is a customer favourite thanks to the large, lofty clusters of premium down that make this emperor duvet feel so special.