Your Cart

Your cart is currently empty.

Shop Now
Protect your products
5-Year Accident Cover £22

We know how important it is to keep your new sleep products safe, but we also know accidents can happen. With Accident Cover, we’ll help you keep your bed and/or mattress in their very best condition.

We are paid by the insurer through commission, which is included in the premium you pay.

So what is covered?
  • Food and drink spills such as coffee or red wine
  • Ink marks from biros, permanent markers etc
  • Make-up and cosmetic stains
  • Accidental damage caused by pets
  • Burns from heated appliances such as straighteners or curlers
  • Rips and tears
  • Damage causing breakage to the frame
What is not insured?
  • Deliberate damage caused by you or any person
  • General wear and tear
  • Accumulation of damage or staining
  • Any structural or manufacturing defects
  • Accidental staining or damage caused by the use of incorrect cleaning products
Subtotal
Pay Now: £0.00 OR Payments from: £0.00
Checkout

Goes like a dream

WHY NOT TRY OUR AWARD-WINNING SLEEP TECH?

FREE PILLOWS, DUVETS & MORE WORTH UP TO £836‡

Ends 20/11/2025, offer excludes refurbished mattresses and cannot be used in conjunction with other offers/promotions, and is subject to our Terms.

Essential Hybrid® mattress receives two† AeroDown pillows worth up to £120.
Hybrid® & Natural Hybrid® Source mattress receives two† Hybrid™ pillows plus mattress protector worth up to £387‡
Hybrid Pro® & Natural Hybrid® Escape mattress receives two† Hybrid™ pillows plus a Hybrid™ duvet and mattress protector worth up to £646‡
Hybrid® Luxe, Hybrid® Ultra, & Natural Hybrid® Apex mattress receives two† Hybrid™ pillows plus a Hybrid™ 3-in-1 duvet, and a mattress protector worth up to £836‡

†Except Single size mattresses (receive one pillow).
‡Mattress protector and duvet/s in size matching the mattress purchase.

King Size Mattresses

When it comes to couples, king mattresses are… well, king. So we’ve made sure every Simba king size mattress has an expert blend of our patented Aerocoil® springs – designed to minimise motion transfer – and our cooler feel Simbatex® foam. Together, they make a superbly comfortable king size mattress that helps you (and your partner) sleep longer and deeper.

Filter

Sort by

Sort by:
RECOMMENDED BEST COMFORT & SUPPORT
Hybrid® Ultra Mattress hybrid

Free with your Ultra Mattress

1 FREE Hybrid™ Pillow

With any single mattress
WORTH £109

2 FREE Hybrid™ Pillows

With any double, king or super king mattress
WORTH £218
A down-like pillow with adjustable height and firmness for optimum support. Discover more

1 FREE Hybrid™ 3-in-1 Duvet

WORTH UP TO £449
Soft, airy comfort, whatever the season. Winter or warmer, meet your new bedtime hero. Discover more

1 FREE Performance Mattress Protector

WORTH UP TO £169
Designed to prolong the life of your mattress and enhance your comfort. Discover more
Products automatically added to cart. T&Cs

Experience Perfection

Hybrid® Ultra Mattress

  • 13 Layers

  • Up to 7,300 Springs

  • 34cm Depth

  • FusionCool™ Layer

King Size £2,499
Or £66.07 monthly
Shop
LUXURY COMFORT & SUPPORT
Hybrid® Luxe Mattress hybrid

Free with your Luxe Mattress

1 FREE Hybrid™ Pillow

With any single mattress
WORTH £109

2 FREE Hybrid™ Pillows

With any double, king or super king mattress
WORTH £218
A down-like pillow with adjustable height and firmness for optimum support. Discover more

1 FREE Hybrid™ 3-in-1 Duvet

WORTH UP TO £449
Soft, airy comfort, whatever the season. Winter or warmer, meet your new bedtime hero. Discover more

1 FREE Performance Mattress Protector

WORTH UP TO £169
Designed to prolong the life of your mattress and enhance your comfort. Discover more
Products automatically added to cart. T&Cs

Plush & luxurious

Hybrid® Luxe Mattress

  • 9 Layers

  • Up to 5700 Springs

  • 31cm Depth

  • Bamboo & Wool top layer 

King Size £1,799
Or £47.56 monthly
Shop
Hybrid® Pro Mattress hybrid

Free with your Pro Mattress

1 FREE Hybrid™ Pillow

With any single mattress
WORTH £109

2 FREE Hybrid™ Pillows

With any double, king or super king mattress
WORTH £218
A down-like pillow with adjustable height and firmness for optimum support. Discover more

1 FREE Hybrid™ Duvet

WORTH UP TO £259
A soothing blend of lightweight warmth and softness for year-round use. Discover more

1 FREE Performance Mattress Protector

WORTH UP TO £169
Designed to prolong the life of your mattress and enhance your comfort. Discover more
Products automatically added to cart. T&Cs

Bestseller - doubled support

Hybrid® Pro Mattress

  • 8 Layers

  • Up to 4800 Springs

  • 28cm Depth

  • Wool top layer

King Size £1,299
Or £34.34 monthly
Shop
Hybrid® Mattress hybrid

Free with your Mattress

1 FREE Hybrid™ Pillow

With any single mattress
WORTH £109

2 FREE Hybrid™ Pillows

With any double, king or super king mattress
WORTH £218
A down-like pillow with adjustable height and firmness for optimum support. Discover more

1 FREE Performance Mattress Protector

WORTH UP TO £169
Designed to prolong the life of your mattress and enhance your comfort. Discover more
Products automatically added to cart. T&Cs

Original Hybrid® design

Hybrid® Mattress

  • 5 Layers

  • Up to 1900 Springs

  • 25cm Depth

  • 9 support zones

King Size £899
Or £23.77 monthly
Shop

Need help choosing a mattress?

Try our mattress quiz
Hybrid® Essential Mattress hybrid

Free with your Essential Mattress

1 FREE AeroDown Pillow

With any single mattress
WORTH £60

2 FREE AeroDown Pillows

With any double or king mattress
WORTH £120
A light and airy pillow that adapts to you for cushioned support, designed to keep you cool all night long. Discover more
Products automatically added to cart. T&Cs

Most budget friendly

Hybrid® Essential Mattress

  • 4 Layers

  • Up to 1000 Springs

  • 20cm Depth

  • 5 Support zones

King Size £749
Or £19.80 monthly
Shop
Natural Hybrid® Apex Mattress natural hybrid®

Free with your Natural Apex Mattress

1 FREE Hybrid™ Pillow

With any single mattress
WORTH £109

2 FREE Hybrid™ Pillows

With any double, king or super king mattress
WORTH £218
A down-like pillow with adjustable height and firmness for optimum support. Discover more

1 FREE Hybrid™ 3-in-1 Duvet

WORTH UP TO £449
Soft, airy comfort, whatever the season. Winter or warmer, meet your new bedtime hero. Discover more

1 FREE Performance Mattress Protector

WORTH UP TO £169
Designed to prolong the life of your mattress and enhance your comfort. Discover more
Products automatically added to cart. T&Cs

Peak natural opulence

Natural Hybrid® Apex Mattress

  • 12 Layers

  • Up to 6,700 Springs

  • 32cm Depth

  • Cashgora, silk & wool layers

King Size £2,099
Or £55.49 monthly
Shop
Natural Hybrid® Escape Mattress natural hybrid®

Free with your Natural Escape Mattress

1 FREE Hybrid™ Pillow

With any single mattress
WORTH £109

2 FREE Hybrid™ Pillows

With any double, king or super king mattress
WORTH £218
A down-like pillow with adjustable height and firmness for optimum support. Discover more

1 FREE Hybrid™ Duvet

WORTH UP TO £259
A soothing blend of lightweight warmth and softness for year-round use. Discover more

1 FREE Performance Mattress Protector

WORTH UP TO £169
Designed to prolong the life of your mattress and enhance your comfort. Discover more
Products automatically added to cart. T&Cs

Boutique hotel feel

Natural Hybrid® Escape Mattress

  • 10 Layers

  • Up to 4,800 Springs

  • 30cm Depth

  • British wool comfort layers

King Size £1,799
Or £47.56 monthly
Shop
Natural Hybrid® Source Mattress natural hybrid®

Free with your Natural Source Mattress

1 FREE Hybrid™ Pillow

With any single mattress
WORTH £109

2 FREE Hybrid™ Pillows

With any double, king or super king mattress
WORTH £218
A down-like pillow with adjustable height and firmness for optimum support. Discover more

1 FREE Performance Mattress Protector

WORTH UP TO £169
Designed to prolong the life of your mattress and enhance your comfort. Discover more
Products automatically added to cart. T&Cs

Wool & spring bliss

Natural Hybrid® Source Mattress

  • 8 Layers

  • Up to 2,900 Springs

  • 28cm Depth

  • British wool comfort layers

King Size £1,299
Or £34.34 monthly
Shop
Hybrid® Ultra Mattress Refurbished refurbished

The best of everything

Hybrid® Ultra Mattress Refurbished

  • 13 Layers

  • Up to 7,300 Springs

  • 34cm Depth

  • FusionCool™ Layer

King Size £1,119
Or £29.58 monthly
Shop
Hybrid® Luxe Mattress Refurbished refurbished

Latest Tech - Most Plush

Hybrid® Luxe Mattress Refurbished

  • 11 Layers

  • Up to 5000 Springs

  • 31cm Depth

  • Bamboo Infused Wool Layer

King Size £899
Or £23.77 monthly
Shop
Hybrid® Pro Mattress Refurbished refurbished

Double Support

Hybrid® Pro Mattress Refurbished

  • 9 Layers

  • Up to 4000 Springs

  • 28cm Depth

  • Pure Wool Layer

King Size £699
Or £18.48 monthly
Shop
Hybrid® Mattress Refurbished refurbished

1/2 MILLION SOLD

Hybrid® Mattress Refurbished

  • 7 Layers

  • Up to 2000 Springs

  • 25cm Depth

  • Original Hybrid® design

King Size £399
Or £10.54 monthly
Sold out
Hybrid® Essential Mattress Refurbished refurbished

Comfortable Price

Hybrid® Essential Mattress Refurbished

  • 4 Layers

  • Up to 1500 Springs

  • 20cm Depth

  • Entry-level Hybrid comfort, UK sizes only

King Size £519
Or £13.72 monthly
Shop
Natural Hybrid® Source Mattress Refurbished refurbished

Oasis of comfort

Natural Hybrid® Source Mattress Refurbished

  • 6 Layers

  • Up to 3,250 Springs

  • 25cm Depth

  • Hemp & Flax layer

King Size £549
Or £14.51 monthly
Sold out
Natural Hybrid® Escape Refurbished refurbished

Sleep sanctuary

Natural Hybrid® Escape Refurbished

  • 7 Layers

  • Up to 4250 Springs

  • 28cm Depth

  • Wool & Hemp layer

King Size £1,149
Or £30.38 monthly
Sold out
Natural Hybrid® Apex Refurbished refurbished

The peak of luxury

Natural Hybrid® Apex Refurbished

  • 8 Layers

  • Up to 5750 Springs

  • 30cm Depth

  • Silk, Cashmere & Mohair layer

King Size £1,449
Or £38.31 monthly
Sold out
CLEARANCE Premium Zoned Mattress

Full body comfort

Premium Zoned Mattress

  • 3 Layers

  • 19cm Depth

  • 7 Support Zones

King Size £279
Or £7.37 monthly
Shop
CLEARANCE Comfort Zoned Mattress

Support made simple

Comfort Zoned Mattress

  • 3 Layers

  • 19cm Depth

  • Multiple Support Zones

King Size £234
Or £19.50 monthly
Shop
Hybrid® Inter Mattress Refurbished refurbished

Exceptional Value

Hybrid® Inter Mattress Refurbished

  • 4 Layers

  • Up to 1500 Springs

  • 23cm Depth

  • 7 Support zones

King Size £449
Or £11.87 monthly
Sold out

  • Why choose a King size mattress?

    As with all mattresses it depends how much space, what size bed you have, and who’ll use it!

    A King size mattress is ideal for couples, offering ample sleeping space; just pair yours with one of our UK King Size Beds for a great Simba sleep.

    But if you have kids who like to come into your bed at night then one of our UK Super King Size mattresses is the answer; for the nearest equivalent EU size check out our European Queen mattresses.

    If you need to size down, Double Mattresses are a space-efficient option, while Small Double Mattresses are great for growing teenagers or spare rooms, as are Single Mattresses that can be used in pairs.

Which Simba mattress is best for you?

Here's an introductory guide to our range. If you're not sure which mattress to go for; we have two different ones: the Hybrid® Range and the Natural Hybrid® range. We also have our own range of Simba certified Refurbished Mattresses, subject to availability.

  • Hybrid® Mattresses

    Award-winning mattresses, packed with ground-breaking tech for superb comfort and support. However you sleep, whatever your budget.

  • Natural Hybrid® Mattresses

    Heavenly comfort, sumptuous support. Designed and made in the UK with a luxurious blend of natural materials and our signature technical expertise.

Happy Sleepers

We rest better when we know your honest opinion of us. Check out reviews from Simba sleepers below.

WIN BACK THE COST OF YOUR FIRST ORDER

Subscribe to our newsletter, order your first mattress online, and we’ll enter you into a monthly draw to win back the entire cost.

Previewing: PRO Theme - Release 94b1956

Please note the finance figures shown are for illustrative purposes only. Details of the actual figures will be available during the finance application process.