King Size Mattress Mattress

Definition

A king size mattress offers generous sleeping space, measuring 150 x 200 cm (5ft wide). It’s a popular choice in UK homes for couples wanting extra comfort compared to a standard double.

Why Choose House of Isabella?

At House of Isabella, we partner with designer brands to offer luxury king size mattresses and matching bedroom furniture. Unlike high-street retailers, our focus is on premium comfort, elegant styling, and free UK delivery.

FAQs

Q: What size is a king mattress in the UK?
A: Standard UK king size is 150 x 200 cm.

Q: Do you sell beds and frames to match king mattresses?
A: Yes — including upholstered, wooden, and designer bed frames.

Q: Do you deliver nationwide?
A: Yes — all mattresses and beds include free delivery across the UK.

Q: Do you sell luxury mattress brands?
A: Yes — alongside premium headboards and designer bedroom sets.

Related Glossary Entries

  • divan bed

  • king size bed frame

  • luxury bedroom furniture

  • double mattress

Disclaimer: All trademarks, brand names and product names mentioned on this website are the property of their respective owners. Any references are made for identification, informational or comparative purposes only, and do not imply any affiliation, endorsement, sponsorship or authorisation.  

Products

Sims Bedside Table - Matte Beige Sims Bedside Table - Matte Beige
Sale
save 20%

Tommy Franks Sims Bedside Table - Matte Beige

£599.00 £479.95 You save £119.05 (20%)
Tommy Franks Sleeping Vertu Bedside Table - Walnut House of Isabella UK Tommy Franks Sleeping Vertu Bedside Table - Walnut House of Isabella UK

Tommy Franks Vertu Bedside Table - Walnut

£790.00
Ponce Bench - Chex Polar Bouclé Ponce Bench - Chex Polar Bouclé

Tommy Franks Ponce Bench - Chex Polar Bouclé

£395.00
Tommy Franks Sleeping Saviour Bedside Table - White Ceramic Marble & Beige House of Isabella UK Saviour Bedside Table - White Ceramic Marble & Beige.
Sale
save 20%

Tommy Franks Saviour Bedside Table - White Ceramic Marble & Beige

£599.00 £479.95 You save £119.05 (20%)
Tommy Franks Living Tavamo Side Table - Black Oak House of Isabella UK Tavamo Side Table - Black Oak.

Tommy Franks Tavamo Side Table - Black Oak

£350.00
Antica Oil Painting Tommy Franks Accessories Antica Oil Painting House of Isabella UK
Sale
save 20%

Tommy Franks Antica Oil Painting

£245.00 £196.95 You save £48.05 (20%)
Tommy Franks Sleeping Palmetto Bedside Table House of Isabella UK Palmetto Bedside Table.

Tommy Franks Palmetto Bedside Table

£470.00
Eliza Bench Eliza Bench

Tommy Franks Eliza Bench

£445.00
Dexter Bedside Table - Walnut - Pair Dexter Bedside Table - Walnut - Pair

Tommy Franks Dexter Bedside Table - Walnut - Pair

£1,090.00
Tommy Franks Dining Tavamo Dining Table - Oval - Walnut House of Isabella UK Tavamo Dining Table - Oval - Walnut.

Tommy Franks Tavamo Dining Table - Oval - Walnut

£1,950.00
Tommy Franks Living Crescent Coffee Table House of Isabella UK Tommy Franks Living Crescent Coffee Table House of Isabella UK

Tommy Franks Crescent Coffee Table

£990.00
Tommy Franks Living Tyrone Lounge Chair - Rust House of Isabella UK Tommy Franks Living Tyrone Lounge Chair - Rust House of Isabella UK

Tommy Franks Tyrone Lounge Chair - Rust

£690.00

Let customers speak for us

from 1711 reviews
Attractive Murano green glass vases.

Very attractive Murano glass styled vases, look great with faux flower arrangements. Largest size orderer and delivered safely and well packaged.

LJNX
Vase 21x38 cm MURELA glass olive green

Really impressed with the quality

Kayley
Ludlow Mirror 220x970mm
Love this gorgeous lamp

Had already bought one in silver and no one had the silver left except yourselves they look gorgeous either side of my bed

Susan Humphrey
Nova Silver Textured Ceramic Bottle Table Lamp
Olive Tree

I absolutely love this tree. It is larger in width that I expected & would have liked it to not have been as wide. However we have kept it & eventually I’ll buy a less wide olive tree for the position I have & will use this one in a larger space. It is beautiful & worth keeping.
The pot isn’t a pure white, which again I would have preferred. As you can see from the photos it looks good regardless of my preferences.

Vanessa Bunn
Faux Olive Tree in White Pot

Loved it, i have ordered 2 more as one does not look right! But now it looks beautifully on the window still!

Nichola
FS Berry Spray Cream GB 77cm
Great comfy chair

These chair are excellent. Very comfortable and look great. Leather is now even softer after using leather conditioner on them.

Darren Rees
Oxford Club Chair in Chocolate Leather

We are in love with our new coffee table, packaged with extreme care as to ensure no damage

MISS
Novara Coffee Table
Great outdoor dining set

A really sturdy and lovely looking garden set. Looks perfect in my garden. Very comfortable wihtout cushions too.

sf
Savoy Round 4 Seater Dining Set

I have ordered one but its not enough soi have ordered again for another 2, lovely flowers!

Nichola
FS Berry Spray Cream GB 77cm

Lovely well made well packed and lovely delivery people

Eve
Devonshire Putty Pine Wood 1 Drawer 4 Basket Tall Unit
Great table for small spaces.

Looked high and low for an adaptable dining table that would fit into a small space. It's really clever and neat the way I can extend the table if needed. Found HOI really efficient at both the ordering and arranging delivery. Would definitely use them again without any hesitation.

Stuart Scott
Vita Extension Table - White Ceramic
Well packed, safely delivered and reasonable price

Lamp shades were well packed, safely delivered and reasonable price for the design.

Peter Collier
Pyramid 48cm Cream Cotton Tapered Square Shade
Sturdy piece of furniture

Very happy with this sideboard. Lots of space and it looks great.

Maggie Evans
Wakefield 3 Door 3 Drawer Sideboard 1730x475x800mm
Lovely pictures

Extremely pleased with these beautiful pictures. Lovely colour palette. Good quality. Reminds me of places I've walked.

Samantha Marks
Wildflower Reflections Framed Canvas
Indi vase olive

Absolutely gorgeous vase. The olive colour is beautiful to go with my olive stems. The vase is so light weight which is perfect.

Kim
Indi Cast Metal Vase Olive Small