King Size Mattress

A king size mattress measures 150cm x 200cm, offering generous space and comfort for couples. Larger than a double but smaller than a super king, it’s one of the most popular bed sizes in the UK thanks to its perfect balance of luxury and practicality.

At House of Isabella, we stock luxury king size mattresses designed to pair with our designer bed frames, including memory foam, pocket-sprung, and hybrid options.

Why shop with us?

  • 25,000+ premium furniture and décor products

  • Free UK delivery on all mattresses

  • Choice of supportive and luxurious mattress types

  • Trusted designer brands for comfort and quality

Related glossary terms: mattress, king size bed, bed frame, super king mattress

FAQs
What size is a king size mattress in the UK?
150cm wide x 200cm long.

Are king size mattresses suitable for couples?
Yes, they provide spacious comfort for two adults.

What types of king size mattresses are available?
We offer memory foam, pocket-sprung, latex, and hybrid models.

Do king size mattresses fit all king size beds?
Yes, our mattresses are designed to standard UK king size measurements.

Products

Sims Bedside Table - Matte Beige Sims Bedside Table - Matte Beige.

Tommy Franks Sims Bedside Table - Matte Beige

£599.00
Tommy Franks Living Ponce Bench - Chex Polar Bouclé House of Isabella UK Ponce Bench - Chex Polar Bouclé.

Tommy Franks Ponce Bench - Chex Polar Bouclé

£395.00
Tommy Franks Sleeping Vertu Bedside Table - Walnut House of Isabella UK Vertu Bedside Table - Walnut.

Tommy Franks Vertu Bedside Table - Walnut

£790.00
Tavamo Dining Table - Oval - Walnut Tavamo Dining Table - Oval - Walnut.

Tommy Franks Tavamo Dining Table - Oval - Walnut

£1,950.00
Tommy Franks Sleeping Saviour Bedside Table - White Ceramic Marble & Beige House of Isabella UK Saviour Bedside Table - White Ceramic Marble & Beige.

Tommy Franks Saviour Bedside Table - White Ceramic Marble & Beige

£599.00
Tommy Franks Living Crescent Coffee Table House of Isabella UK Crescent Coffee Table.

Tommy Franks Crescent Coffee Table

£990.00
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
Tommy Franks Sleeping Dexter Bedside Table - Walnut - Pair House of Isabella UK Dexter Bedside Table - Walnut - Pair.

Tommy Franks Dexter Bedside Table - Walnut - Pair

£1,090.00
Tommy Franks Sleeping Palmetto Bedside Table House of Isabella UK Palmetto Bedside Table.

Tommy Franks Palmetto Bedside Table

£470.00
Tommy Franks Living Lantine Buffet - Black Oak & Brass House of Isabella UK Lantine Buffet - Black Oak & Brass.

Tommy Franks Lantine Buffet - Black Oak & Brass

£1,750.00
Tommy Franks Dining Envie II Counter Stool - Giselle Olive House of Isabella UK Envie II Counter Stool - Giselle Olive.

Tommy Franks Envie II Counter Stool - Giselle Olive

£470.00
Tommy Franks Living Lantine TV Unit - Black Oak & Brass House of Isabella UK Lantine TV Unit - Black Oak & Brass.

Tommy Franks Lantine TV Unit - Black Oak & Brass

£1,490.00

Let customers speak for us

from 1645 reviews
Solid and good quality.

Was please to have received what I had anticipated. Solid well and made

Steven Tanner
Creegbrawse Wall Light Antique Brass and Black | OUTLET
Superb

Exceptional for the price

Sithokozile Masuku
Marshmallow Rabbit Fur Throw Cream

So stylish and comfortable

N.M.
On The Swivel Accent Chair
Excellent

Amazing product speedy delivery great price and table is of high quality and unique

Would shop here again

Lorraine Dunstan
End table Laila
Beautiful light

Although this is a bit tricky to put together. (Hung it on the garden chair to add the glass rods. )It was worth it. I’ve had lots of compliments on how beautiful the light is.

Jenny D
Mariette 3 Ceiling Light Antique Brass

Good price

Sithokozile Masuku
Potted Grass with 3 Heads Green/Russet | OUTLET
Pleasantly surprised.

Rarely do I find that items I order online. Look as good in person. This mirror met all of my expectations and more! Very attractive, perfect for the spot I have it in. I was also wry pleased with the speed of shipping. The mirror arrived within a week! Plus it was packed beautifully! I would order again.

Jacque b
Lennyn Gold Vanity Mirror
Great mirror, great service

Love the mirror we got from yourselves, great service and it really finishes off the room.

Lee C
Antique Bronze Metal Round Wall Mirror Large
fabulous

beautiful top quality bedside tables. fantastic delivery experience too. can’t fault anything.

Jayne Gordon
Palmetto Bedside Table
Mirror

Great product. Good delivery times. Really pleased all round

Eve Goncalves
Beaminster Octagon Mirror Champagne
Lovely quality statement console

Great quality item for the money - looks great even in a small space - house of Isabella have been great to deal with as I started with an issue - service and resolution took a little time but communication been first class

Alison Hobbs
Castlederg Console Table - Champagne

The clock is beautiful. House of Isabella at first accidentally despatched the wrong colour but the customer service was excellent and they were happy to arrange for collection and redelivery of the correct item once it was in stock. Overall happy with the experience despite the initial hiccups.

Girish
Antique Bronze & Gold Metal Round Wall Clock | OUTLET
Gorgeous

This lamp is stunning, even better in real life - definitely worth waiting for as it was out of stock

Kelly J
Flora White Floral Ceramic Table Lamp
Great lamp

Very nice lamp, sturdy and elegant.

Mike Kellard
Port Nickel and Wood Tripod Floor Lamp - Base Only
Stunning wall lights

A very classy and high quality wall lights, perfect for my living room. Even came with gloves to handle the lights very nice :-)

Kanwal Jafri
Wall lamp Mylas gold (Gold)