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:

  • Cot Bed: 120cm x 150cm (47" x 59")

  • Single: 135cm x 200cm (53" x 79")

  • Double: 200cm x 200cm (79" x 79")

  • King Size: 230cm x 220cm (91" x 87")

  • Superking: 260cm x 220cm (102" x 87")

  • Emperor: 290cm x 235cm (114" x 93")

 

What are the UK duvet sizes?

The main duvet sizes in the UK are as follows:

  • Cotbed duvets: 120cm x 150cm

  • Single duvets: 135cm x 200cm

  • Double duvets: 200cm x 200cm

  • King size duvets: 230cm x 220cm

  • Super king duvets: 260cm x 220cm

  • Emperor duvets: 290cm x 235cm

Although it’s common to buy a duvet that matches your mattress size, there’s no strict rule. Going up a size can give you extra coverage—perfect if you share your bed with a duvet-snatcher! A larger duvet also drapes further down the sides of the bed, creating a more luxurious look.

Our range includes:

  • Soft As Down microfibre duvets

  • Temperature-regulating New Zealand wool duvets

  • Eco-conscious Tencel-fill duvets

What size is a cot bed duvet?

A cot bed duvet is 120cm x 150cm. It's perfect for cot beds and suitable for toddlers aged one and over. Babies under one year should never be given a duvet.

These duvets usually have a lower tog rating because young children can't regulate their temperature as easily. The ideal room temperature for young children is around 18°C. If it’s colder, simply add a light blanket.

A great option is our New Zealand Wool cotbed duvet, which helps regulate temperature year-round.

What size is a single size duvet?

A single duvet is 135cm x 200cm. Perfect for single beds, but also great for couples who want separate duvets to avoid nighttime tug-of-war.

Tip: Try using two single duvets on one bed—each person gets the ideal tog and their own space.

Popular choices include:

  • Soft As Down microfibre duvets (ideal for kids and teens)

  • Duck Feather & Down duvets for extra insulation

What size is a double duvet?

A double duvet is 200cm x 200cm. Best for double beds, but also a cosy upgrade for single beds.

For luxurious comfort, try:

  • 100% Canadian Goose Down duvets – soft, lofty, and ethically filled

  • Tencel-fill duvets – a vegan-friendly blend of plant-based lyocell and recycled fibres

What size is a king size duvet?

A king size duvet is 230cm x 220cm. While ideal for king size beds, it also adds generous coverage to double beds—especially helpful if you share and want fewer duvet battles.

Top picks:

  • Pure Silk fill – made from 100% Tussah silk for cool, breathable sleep

  • 80% Recycled Down – sustainable warmth with a lofty, cloud-like feel

What size is a superking size duvet?

A superking duvet measures 260cm x 220cm. It’s the go-to for superking beds but also suits double and king size beds if you want added width and drape.

For ultimate indulgence, explore:

  • Eiderdown superking duvet – handcrafted to order, with rare Eiderdown clusters and a silk casing

What size is an emperor duvet?

An emperor duvet is 290cm x 235cm—the largest size we offer. Designed for emperor beds, but also a fabulous treat for superking or king size beds.

Enjoy unmatched comfort with:

  • 90% Hungarian Goose Down emperor duvet – large, lofty down clusters for a premium sleep experience