UK Bed Sizes: A Guide To Finding The Right Size Mattress For Your Space

A good night’s sleep is the cornerstone of a happy and healthy life. Like a hidden superpower – a good night’s rest can make all the difference in how we feel, function, and embrace each day. But did you know that the right mattress size plays a crucial role in achieving the restful slumber we all crave?

Whether you’re looking to upgrade to a more spacious sleep haven, downsize for a snug and cozy retreat, or simply seeking the perfect fit, understanding UK bed sizes and dimensions is the key to unlocking your sleep sanctuary. From the space-efficient Single to the regal Super King, each mattress size has its own perks and considerations. Join us as we navigate the maze of UK bed sizes to find your perfect fit!


UK Bed Sizes and Dimensions Chart

Our UK Bed Sizes and Dimensions Chart is a useful tool for quickly referencing the most popular mattress sizes. You can easily find the width and length measurements for Small Single, Single, Small Double, Double, King, Super King, and Emperor beds. With this comprehensive chart, you can make an informed decision that perfectly fits your bedroom space and sleep preferences.

Bed/Mattress Size



Small Single

75cm x 190cm

2’6″ x 6’3″


90cm x 190cm

3′ x 6’3″

Small Double

120cm x 190cm

4′ x 6’3″


135cm x 190cm

4’6″ x 6’3″


150cm x 200cm

5′ x 6’6″

Super King

180cm x 200cm

6′ x 6’6″


200cm x 200cm

6’6″ x 6’6″

UK bed sizes and mattress dimensions chart

Impact of Bed Sizes on Sleep Quality and Comfort

Now, you might wonder, “Does bed size really matter for a good night’s sleep?” Absolutely! The size of your mattress can significantly impact your sleep quality and overall comfort.

The right bed size ensures you have enough space to move freely, find a comfortable sleeping position, and minimize disturbances during the night. It can also help regulate body temperature, reduce pressure points, and improve overall sleep efficiency.

Choosing the Right Size Bed & Mattress

When it comes to choosing the perfect bed size, room dimensions play a vital role. Measure your bedroom space carefully and consider the placement of other furniture to ensure that your chosen bed size fits harmoniously without making your room feel cramped.

Additionally, personal preferences come into play. Some people love the cozy feel of a Single bed, while others might relish the freedom of a Super King bed. Think about how you sleep – do you stretch out like a starfish or prefer the comfort of curling up? Understanding your sleep habits will guide you toward your ideal bed size.

What Size Is A UK Small Single Bed & Mattress?

The Small Single bed is ideal for your little one or a guestroom. It provides a space-efficient and cozy sleep setup, perfect for little ones transitioning to a “big kid” bed, and a savvy choice for welcoming guests with comfort. The small single bed maximizes space, making it an intelligent and practical option for any room.

Dimensions: 75cm in width and 190cm in length (or 2 feet 6 inches by 6 feet 3 inches)

Best For: Young children (4+), guest rooms, and small rooms with limited space.

Chart describing what size is a small single bed UK.

What Size Is A UK Single Bed & Mattress?

The Single bed is a space-saving wonder that caters to various sleep needs. Its compact dimensions make it the perfect match for solo sleepers seeking a cozy sleep environment within limited bedroom space. Additionally, budget-conscious shoppers will find the Single bed a smart choice, as it offers comfort and functionality without breaking the bank. Whether you’re furnishing a small apartment or a guest room or looking for a practical bed for your child’s bedroom, the Single bed is a delightful option that delivers big on both comfort and value.

Dimensions: 90cm in width and 190cm in length (or 3 feet by 6 feet 3 inches)

Best For: Solo sleepers, budget shoppers, and smaller spaces.

Chart explaining what size is a single bed UK

What Size Is A UK Small Double Bed & Mattress?

The Small Double bed, sometimes called a Queen bed in certain regions, strikes the perfect balance for those who desire more space than a Single bed but want to avoid committing to a full Double bed. It’s a versatile and widely favored option, offering a winning combination of space efficiency and comfort. Whether you’re a solo sleeper, sharing your bed with a partner, or welcoming guests, this bed size offers a delightful sleep experience that fits perfectly into various lifestyles and living spaces.

Dimensions: A Small Double bed measures 120cm in width and 190cm in length (or 4 feet by 6 feet 3 inches). 

Best For: Couples with limited bedroom space, Solo sleepers craving a larger bed surface.

Chart explaining what size is a small double bed UK

What Size Is A UK Double Bed & Mattress?

The Double bed is perfect for couples and solo sleepers who desire a harmonious blend of intimacy and comfort. Whether you prefer to share your bed with a loved one or enjoy having extra space for yourself, this bed offers ample room for movement while still fitting snugly into most bedrooms.

Dimensions: A Double bed measures 135cm in width and 190cm in length (or 4 feet 6 inches by 6 feet 3 inches). It’s the Goldilocks of bed sizes – not too big, not too small; it’s just right!

Best For: Solo sleepers who crave extra room; Couples with limited bedroom space.

Chart explaining what size is a double bed UK

What Size Is A UK King Bed & Mattress?

The King bed is the perfect choice for tall individuals who often find their feet hanging off smaller beds. It guarantees a comfortable slumber and the opportunity to stretch out. It is also ideal for couples who share their bed with loved ones or furry friends. Its generous size allows plenty of space for movement and relaxation, offering a truly luxurious sleeping experience. The King bed is best suited for larger bedrooms with extra space.

Dimensions: A King bed measures 150cm in width and 200cm in length (or 5 feet by 6 feet 6 inches).

Best For: Couples and Families, Taller Individuals, Large Bedrooms

Chart explaining what size is a king bed UK

What Size Is A UK Super King Bed & Mattress?

The Super King bed is the ultimate definition of luxury and comfort. It is ideal for couples who want ample space to unwind, families who prefer to sleep with their children or pets, and those who desire a luxurious and extravagant sleep. It’s even more spacious than the King size bed and is most suitable for bigger bedrooms.

Dimensions: A Super King bed is significantly larger, measuring approximately 180cm in width and 200cm in length (or 6 feet by 6 feet 6).

Best For: Couples and Families, Taller Individuals, Large Bedrooms

Chart explaining what size is a Super King bed UK

What Size Is An Emperor Bed & Mattress?

The Emperor bed stands as a symbol of exquisite luxury and comfort. Whether you’re a couple seeking the ultimate space to rest and rejuvenate, a family cherishing moments of togetherness, or an individual who revels in grandeur and opulence, the Emperor bed offers a sleep experience that transcends the ordinary. Please be aware that the Emperor bed size is not a standard size and may not be offered by many mattress companies.

Dimensions: An Emperor bed is one of the largest UK bed sizes available, offering a truly generous sleeping area. It typically measures 200cm in width and 200cm in length (or 6 feet 6 inches by 6 feet 6 inches).

Best For: Large Families, Large Spaces, and Individuals seeking a luxury sleep experience.

Which UK Bed Size Is Right For You?

Sleep is not just a necessity; it’s a cherished part of our lives that can make all the difference in how we embrace each day. With the right bed size and mattress, you’ll unlock the hidden superpower of a good night’s sleep, leaving you feeling refreshed, invigorated, and ready to conquer life’s adventures with a smile.

Remember, the right bed size impacts your sleep quality, overall well-being, and daily productivity. As you make your choice, consider your personal preferences, room dimensions, and the type of sleep experience you desire. Measure your space carefully, explore different mattress types, and envision your perfect sleep haven.

From the space-efficient Single bed, perfect for solo sleepers and snug guest rooms, to the grandeur of the Emperor bed, offering an unrivaled luxury experience, each bed size caters to specific needs and preferences. Whether you’re seeking ample space for cuddling up with loved ones, cozy comfort for your little one’s transition to a “big kid” bed, or a practical solution for limited bedroom space, there’s a perfect bed size waiting for you.

Ready to find your dream mattress? Look no further than our comprehensive collection of mattress reviews, featuring the best options for all bed sizes in the UK. Our reviews cover industry-leading brands such as Nectar, Simba, Eight Sleep, and more.

UK Bed Sizes Infographic