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What's Bigger Than a King?Chiropractor's Guide(2024)

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Is There a Bigger Mattress Than a King? | Mattress Guide

Is There a Bigger Mattress Than a King? 

Are you tired of fighting for space in your bed? If you’re considering upgrading to a larger mattress, you might be wondering if there’s a bigger option than a king-size mattress. In this article, we’ll explore the different mattress sizes available in the UK and Ireland and help you decide which one is right for you.

There are bigger mattresses than a King size. The Super King (180 x 200 cm) is larger than a standard King (150 x 200 cm), and the Emperor (200 x 200 cm) is even bigger, providing ample space and comfort for sleepers. These sizes offer a wider range of options for those seeking more room in bed.

Super King Size Mattress


A super king-size mattress is larger than a standard king size, measuring 180cm x 200cm (6ft x 6ft 6in). This size provides more space for individuals or couples who need a little extra room to move around.


The added width and length of a super king size mattress can provide extra comfort and support for people who have a larger body frame or simply prefer more space to spread out. It’s also a great option for couples who have different sleep preferences or require additional room for a child or pet.

California King Size Mattress


The California king size mattress, also known as a Western king, is another option for those seeking a larger bed. It measures 183cm x 213cm (6ft x 7ft), making it slightly longer but narrower than a super king size mattress.


The California king size mattress is ideal for taller individuals who need extra legroom or people who prefer a narrower bed. Its unique dimensions also make it a popular choice for bedrooms with a longer, narrower layout.

Emperor Size Mattress


The emperor-size mattress is one of the largest standard mattress sizes available in the UK and Ireland, measuring 200cm x 200cm (6ft 6in x 6ft 6in). This luxurious size offers plenty of space for couples who crave extra room or for families who enjoy sharing a bed for movie nights or storytime.


The emperor size mattress provides ample space for people who enjoy sprawling out during sleep or for couples who value their personal space. Its generous dimensions also make it a great choice for those with larger bedrooms, creating a striking focal point in the room.

Bespoke Mattress Sizes

For those who require something even larger than the standard mattress sizes, bespoke options are available. Many mattress manufacturers offer custom-made mattresses to suit unique requirements or room dimensions. These bespoke mattresses can be made to fit any size or shape, ensuring that you get the perfect mattress for your needs.

UK and Irish Mattress Size Comparisons

Standard Sizes

Here’s a quick comparison of the standard mattress sizes available in the UK and Ireland:

Mattress Size Dimensions Feet and Inches
Single 90cm x 190cm 3ft x 6ft 3in
Double 135cm x 190cm 4ft 6in x 6ft 3in
King 150cm x 200cm 5ft x 6ft 6in
Super King 180cm x 200cm 6ft x 6ft 6in
California King 183cm x 213cm 6ft x 7ft
Emperor 200cm x 200cm 6ft 6in x 6ft 6in

Special Sizes

In addition to the standard sizes, some manufacturers offer special sizes, such as:

Special Size Dimensions Feet and Inches
Small Single 75cm x 190cm 2ft 6in x 6ft 3in
Small Double 120cm x 190cm 4ft x 6ft 3in
Large Emperor 215cm x 215cm 7ft x 7ft

Selecting the Right Mattress Size for Your Needs

Room Size

When choosing a mattress size, consider the dimensions of your bedroom. A larger mattress may provide more sleeping space, but it could also dominate the room and limit your options for furniture placement. Measure your room and ensure there’s enough space for the bed, as well as any other necessary furnishings and adequate room to move around.

Personal Space

Think about your personal sleeping habits and the space you need to feel comfortable. If you share your bed with a partner, discuss your preferences and consider the extra space that a larger mattress can offer.


Larger mattresses tend to be more expensive, so consider your budget when deciding on a mattress size. Additionally, larger beds require larger bed frames, sheets, and other bedding accessories, which can also increase the overall cost.

Common Bed and Mattress Terminology

It’s essential to understand common bed and mattress terminology to make an informed decision:

  • Divan: A type of bed base that typically includes built-in storage drawers.
  • Ottoman: A bed base with storage space accessible by lifting the mattress.
  • Headboard: A decorative panel attached to the head of the bed, often made from wood or upholstered fabric.
  • Box spring: A supportive foundation for a mattress, often used with innerspring mattresses.
  • Pillow top: A soft, cushioned layer added to the top of a mattress for extra comfort.

Mattress Types

There are various mattress types to choose from, each offering different levels of comfort and support:

Memory Foam

Memory foam mattresses contour to your body shape, providing excellent pressure relief and support. They also help with motion isolation, making them a popular choice for couples.


Innerspring mattresses feature a system of metal coils that provide support and bounce. These mattresses are typically more affordable and have a traditional feel.


Hybrid mattresses combine the best features of memory foam and innerspring mattresses, offering both pressure relief and support. They usually have a layer of memory foam or latex over a coil support system.


Latex mattresses offer a responsive, bouncy feel, similar to innerspring mattresses, but with the added benefit of being more durable and hypoallergenic.

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Factors to Consider When Buying a Mattress


Firmness refers to how hard or soft a mattress feels. Your ideal firmness level depends on your body weight, sleeping position, and personal preference. A mattress that is too firm may cause pressure points, while one that is too soft may not provide adequate support.


Support is crucial for maintaining proper spinal alignment during sleep. Look for a mattress that provides adequate support for your body weight and sleeping position to prevent back pain and discomfort.

Temperature Regulation

Some mattresses retain heat, which can lead to an uncomfortable sleeping environment. If you tend to sleep hot, consider a mattress with cooling features, such as gel-infused memory foam or breathable latex.

Motion Isolation

If you share your bed with a partner, motion isolation is essential to prevent disturbances during the night. Memory foam and latex mattresses typically offer better motion isolation than innerspring mattresses.

Caring for Your Mattress

To prolong the life of your mattress and maintain its comfort, follow these care tips:

  • Use a mattress protector to safeguard against spills and stains.
  • Rotate your mattress regularly to prevent uneven wear.
  • Clean your mattress according to the manufacturer’s guidelines.
  • Ensure your bed frame or base provides adequate support for your mattress.



In the UK and Ireland, there are several mattress sizes larger than a king, including the super king, California king, and emperor. Bespoke mattress sizes are also available for those with unique requirements. When selecting a mattress, consider factors such as room size, personal space, budget, and mattress type to ensure you make the best choice for your needs.


Upgrading to a larger mattress can significantly improve your sleep quality and overall comfort. By understanding the various mattress sizes and options available in the UK and Ireland, you can make an informed decision and find the perfect mattress to suit your needs.


1. Are California king and super king mattresses the same?

No, a California king mattress is longer but narrower than a super king mattress. A California king measures 183cm x 213cm (6ft x 7ft), while a super king measures 180cm x 200cm (6ft x 6ft 6in).

2. What is the largest standard mattress size in the UK and Ireland?

The emperor size mattress is one of the largest standard mattress sizes available in the UK and Ireland, measuring 200cm x 200cm (6ft 6in x 6ft 6in).

3. Can I get a custom-made mattress if the standard sizes don’t meet my needs?

The Spinery is a company based in Ireland that creates bespoke high-quality mattresses.

4. How can I ensure my mattress lasts as long as possible?

To prolong the life of your mattress, use a mattress protector, rotate it regularly, clean it according to the manufacturer’s guidelines, and ensure your bed frame or base provides adequate support.

5. Which mattress type is best for motion isolation?

Memory foam and latex mattresses typically offer better motion isolation than innerspring mattresses, making them a popular choice for couples who want to minimise disturbances during the night.

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Dr Lawrence Woods DC

Dr Lawrence Woods DC


My goal is to create the highest quality ergonomic office chairs and accessories for unmatched comfort.

With 30 years of spinal healthcare experience in Ireland as a chiropractor, I learned the value of high-quality sitting for living a happy and healthy life.

I have a Chiropractic Degree from Life Chiropractic College West and I am NBCE Physiotherapy certified.


About Me

Dr Lawrence Woods

My name Dr Lawrence Woods DC and I have been designing mattresses, pillows, chairs and seat cushions for over 20 years. As a chiropractor, my goal has always focused on improving the health of my patients by optimizing how they sleep and sit. My designs have been nominated for numerous awards and I continue to be at the forefront of this industry, helping people get the best night’s sleep possible. I have a Chiropractic Degree from Life Chiropractic College West, I am NBCE Physiotherapy certified and an OSHAcadenmy certified ergonomist.


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