UK Bed Linen Sizes, A Clear Guide to a Perfect Fit

Getting sizes right makes the whole bed feel calmer, look neater and last longer. This guide shows the exact UK dimensions, how to measure mattress depth and which sheets to choose so corners stay smooth and the overhang looks tailored. For a full view of colours and weaves, browse our wider bed linen.

 

 

UK mattress sizes

Use these common UK dimensions when choosing sheets and duvets. Measure your own mattress to confirm as some makers vary slightly.

• Single. 90 × 190 cm

• Double. 135 × 190 cm

• King. 150 × 200 cm

• Super king. 180 × 200 cm

• Emperor. 200 × 200 cm. Some makers use about 215 × 215 cm

At a glance
Single 90×190 cm. Double 135×190 cm. King 150×200 cm. Super king 180×200 cm. Emperor 200×200 cm.

Fitted sheet sizing and depth

A fitted sheet must cover width, length and depth. Measure mattress depth from the top surface to the base seam and include any topper. Add two to four centimetres to allow for shrinkage and a comfortable tuck.

Typical fitted sheet depths

• Standard depth. about 25 to 28 cm

• Deep. about 30 to 34 cm

• Extra deep. about 36 to 40 cm

Choose the next depth above your measured value so corners sit cleanly. Explore sizes and depths in fitted sheets.

Common slip. Buying a fitted sheet that matches depth exactly. Choose the next depth up so corners sit cleanly.

 

 

Flat sheet sizing

A flat sheet should cover the mattress with enough turn back at the head and enough drop at the sides to look balanced.

Guide starting points

• Double. flat sheet about 230 × 260 cm

• King. flat sheet about 275 × 275 cm

• Super king. flat sheet about 305 × 275 cm

Adjust for mattress height and preference. Taller beds and deeper mattresses benefit from a wider sheet.

Duvet and cover sizes

Match duvet and cover sizes to the mattress for a tidy overhang. A slightly larger duvet can add a more luxurious drape on smaller mattresses.

Common UK duvet sizes

• Single. 135 × 200 cm

• Double. 200 × 200 cm

• King. 225 × 220 cm

• Super king. 260 × 220 cm

• Emperor. about 290 × 235 cm

Choose a cover that matches the duvet label for a smooth fit. When you update the top layer, explore our range of duvet covers.

Another mistake to avoid. Pairing the wrong duvet size to the mattress. One size larger can give a softer drape on smaller beds.

Pillow sizes

Pillowcases should fit the insert without excess slack.

• Standard. 50 × 75 cm

• Super king. 50 × 90 cm. Some brands label this King size

A well matched case keeps edges crisp and helps pillows stack neatly with shams behind.

Fabric and weave for comfort

• Percale feels cool, crisp and matte. Ideal when you prefer airflow.

• Sateen feels smoother with a little more drape. Good when you want a softer hand.
  If you enjoy a naturally breathable, heritage feel, start with Egyptian cotton bed linen.

Simple measuring checklist

• Measure mattress width, length and depth in centimetres.

• Include any topper in the depth.

• Choose a fitted sheet depth that exceeds the measurement by a small margin.

• Pick a duvet size that matches the mattress or one step larger if you prefer more drape.

• Confirm pillow size before choosing cases.

Closing CTA

For personalised sizing help and early access, join the Heritage Partnership today.