Choosing the perfect bed size is one of the most important steps when buying a new bed frame and mattress.
With options ranging from compact Singles (3ft wide) to spacious Super Kings (6ft wide), it’s easy to feel overwhelmed.
But if you’re looking for something in between—a bed that offers more space than a Single but takes up less room than a Double—a three-quarter bed, also known as a small double, might be the perfect choice.
So, how big is a three-quarter bed, and who is it best for? Let’s dive into the details.
How Big is a Three Quarter (Small Double) Bed?
A three-quarter bed, or small double, measures 4ft wide by 6ft 3in long (120cm x 190cm). Slightly wider than a Single but narrower than a Double, this versatile size is ideal for:
- Guest Rooms: Perfect for occasional visitors who want more space than a Single bed provides.
- Children’s Rooms: Great for kids who need room to grow or enjoy stretching out.
- Compact Bedrooms: A smart choice for small spaces where a Double bed might feel too large.
Here’s how it compares to other common bed sizes:

In the picture below you can see the dimensions of the Woodstock Wooden Bed Frame, that’s priced at £299 for a double size.


In the picture above you can see the dimensions of the Woodstock Wooden Bed Frame, that’s priced at £299 for a double size.
The length of the bed frame is 203cm, but it will fit a mattress that is 190cm long. The width of the bed frame is 132cm, but it will fit a mattress 120cm wide.
How long is a three quarter bed?
In the UK, a three quarter (or small double) bed is 6ft 3in long, which equates to 190cm. This is long enough for those of average height but might not be ideal if you’re particularly tall!
How big is a three quarter bed in feet and cm?
The UK industry standard for three quarter beds is 4ft wide and 6ft 3in long. Going by the metric system, a three quarter bed is 120cm wide and 190cm long. This makes them wider than single beds but smaller than standard doubles.
Homeowners tend to favour small doubles for spare bedrooms, as they take up less space and are often cheaper to buy, which is ideal when the bed is only in use once in a while.
So, you might be wondering if a small double is big enough for two people? Let’s find out.
Is a three quarter bed enough for two people?
The short answer to this question is yes; three quarter (small double) beds are big enough for two people. Ultimately, whether it is appropriate for you and your partner is down to personal preference.
If you like the idea of snuggling into one another during the night and don’t have a great deal of space in your bedroom, then a three quarter bed will work well for you.
However, if you like your own space in the bed and tend to overheat at night, you would be better opting for a traditional double.
Did You Know? Usually three quarter (or small double) and double sized beds and mattresses have the same price. For example, Simba sells both their small double and double hybrid mattress for £599.40 when it’s on sale (reg. £999).
The Nectar Memory Foam Mattress is priced at £499 for both the small double and double size when on sale. So if you have the space in your room, you might want to opt for getting bigger size since it’s the same price.
What bed size is right for you?
A three quarter bed falls in between a single and conventional double in terms of size. It is 4ft (120cm) by 6ft 3in (190cm), which is more than adequate for single sleepers who want a bit more space, or couples who don’t mind snuggling into one another during the night.
They are also a great option for spare bedrooms, as you can easily save some floor space while still providing a comfortable sleeping option for any overnight guests that you welcome into your home.
Prices mentioned above are accurate as of 3 January, 2024.