UK Bed Sizes Guide: Single, Double, King & Super King

Buying a bed is exciting, but getting the size wrong is an expensive mistake. A bed that is too big makes a room feel cramped, and one that is too small can leave you short on comfort. UK bed sizes also have their own names, which can be confusing if you are not sure what a “small double” or a “super king” really means.
This guide lists the standard UK sizes, shows you how to measure your room, and helps you pick the best fit. Because every DreamCraft Furniture bed is made to order, you can choose the size that suits your room.
Standard UK bed and mattress sizes
| Size name | Feet | Mattress (cm) | Best for |
|---|---|---|---|
| Small single | 2ft 6 | 75 x 190 | Small children’s rooms |
| Single | 3ft | 90 x 190 | One sleeper, kids and teens, guest rooms |
| Small double | 4ft | 120 x 190 | One adult who wants extra room, or a small spare room |
| Double | 4ft 6 | 135 x 190 | Two sleepers in a smaller room, or one adult who likes space |
| King | 5ft | 150 x 200 | Couples who want more space |
| Super king | 6ft | 180 x 200 | Couples who want maximum space, or taller sleepers |
These are standard mattress sizes. Always check the exact sizes shown on each product page, because the bed frame itself is larger than the mattress it holds.
Which size is right for you?
How to measure your room before you buy
- 1Measure the room. Note the length and width, and mark where doors, windows and radiators sit.
- 2Plan the bed’s position. Place it so the door can open fully and nothing blocks the way.
- 3Leave walking space. As a rule of thumb, aim for around 60 cm on each side you will use, so you can get in and out and make the bed easily.
- 4Allow for the frame. The frame, headboard and any footboard make the whole bed larger than the mattress, so measure with those in mind.
- 5Think about storage. If you are choosing drawers or an ottoman base, leave room for them to open.
If you are weighing up storage styles, our comparison of a divan bed vs an ottoman bed will help.
Do not forget delivery access
Our Delivery & Returns page explains what to check before delivery.
Choose a mattress that matches
Your mattress must match your bed base, so decide the size first and then pick the mattress. Our guide to choosing a mattress explains firmness and types, and you can browse the mattress collection once you know your size.
Frequently asked questions
Order your bed in the right size
Once you know your size, shop our full range of beds, choose your fabric colour and options, and we will make it to order for you.
Divan Beds with FootboardShop now →
Ottoman BedsShop now →
Ottoman Beds with FootboardShop now →
Sleigh BedsShop now →
TV BedsShop now →
Luxury BedsShop now →
MattressesShop now →
