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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.

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
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Goes like a dream

WHY NOT TRY OUR AWARD-WINNING SLEEP TECH?

FREE PILLOWS, DUVET, PROTECTORS WITH SELECTED MATTRESSES

Ends 10/08/25, offer excludes refurbished mattresses and cannot be used in conjunction with other offers/promotions, and is subject to our Terms.

Hybrid® Essential mattress® receives two† Pure pillows. Hybrid® & Source mattress receives two† Hybrid™ pillows; Hybrid® Pro & Escape mattress receives two† Hybrid™ pillows plus mattress protector‡; Hybrid®Luxe or Hybrid® Ultra and Apex mattress receives a Hybrid™ duvet and mattress protector‡, and two† free Hybrid™ pillows†. Except Single size mattresses (receive one pillow). ‡Mattress protectors and duvets in size matching mattress purchase.

Super King Size Mattresses

Looking for a sumptuous space to sleep in? Then take a look at our super king mattresses. Whether you’re stretching out solo, in a couple, or part of a growing family, they’re a truly luxurious sleep space. Each super king size mattress features our signature sleep tech for a superbly comfortable sleep, like our responsive Aerocoil® micro springs, and our fresh Simbatex® foam.

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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™ 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

The best of everything

Hybrid® Ultra Mattress

  • 11 Layers

  • Up to 7300 Springs

  • 34cm Depth

  • FusionCool™ Layer

Super King £2,799
Or £67.66 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™ 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

Luxury Support

Hybrid® Luxe Mattress

  • 9 Layers

  • Up to 5700 Springs

  • 31cm Depth

  • Bamboo & Wool top layer 

Super King £1,999
Or £48.32 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 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

Bestselling

Hybrid® Pro Mattress

  • 8 Layers

  • Up to 4800 Springs

  • 28cm Depth

  • Wool top layer

Super King £1,399
Or £33.81 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
Products automatically added to cart. T&Cs

1/2 Million Sold

Hybrid® Mattress

  • 5 Layers

  • Up to 1900 Springs

  • 25cm Depth

  • 9 support zones

Super King £999
Or £24.15 monthly
Shop

Need help choosing a mattress?

Try our mattress quiz
CLEARANCE Hybrid® Inter Mattress

Exceptional Value

Hybrid® Inter Mattress

  • 4 Layers

  • Up to 1500 Springs

  • 23cm Depth

  • 7 Support zones

Super King £499
Or £12.06 monthly
Shop
Earth Apex Mattress earth

Free with your Earth 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™ 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

The peak of luxury

Earth Apex Mattress

  • 12 Layers

  • Up to 6,700 Springs

  • 32cm Depth

  • Cashgora, silk & wool layers

Super King £2,599
Or £62.82 monthly
Shop
Earth Escape Mattress earth

Free with your Earth 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 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

Sleep sanctuary

Earth Escape Mattress

  • 10 Layers

  • Up to 4,800 Springs

  • 30cm Depth

  • British wool comfort layers

Super King £1,999
Or £48.32 monthly
Shop
Earth Source Mattress earth

Free with your Earth 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
Products automatically added to cart. T&Cs

Oasis of comfort

Earth Source Mattress

  • 8 Layers

  • Up to 2,900 Springs

  • 28cm Depth

  • British wool comfort layers

Super King £1,499
Or £36.23 monthly
Shop
Hybrid® Ultra Mattress Refurbished refurbished

The best of everything

Hybrid® Ultra Mattress Refurbished

  • 13 Layers

  • Up to 8,500 Springs

  • 34cm Depth

  • FusionCool™ Layer

Super King £1,999
Or £48.32 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

Super King £999
Or £24.15 monthly
Shop
Hybrid® Pro Mattress Refurbished refurbished

Double Support

Hybrid® Pro Mattress Refurbished

  • 9 Layers

  • Up to 4000 Springs

  • 28cm Depth

  • Pure Wool Layer

Super King £699
Or £16.89 monthly
Shop
Hybrid® Mattress Refurbished refurbished

1/2 MILLION SOLD

Hybrid® Mattress Refurbished

  • 7 Layers

  • Up to 2000 Springs

  • 25cm Depth

  • Original Hybrid® design

Super King £649
Or £15.68 monthly
Shop
Earth Source Mattress Refurbished refurbished

Oasis of comfort

Earth Source Mattress Refurbished

  • 6 Layers

  • Up to 3,250 Springs

  • 25cm Depth

  • Hemp & Flax layer

Super King £649
Or £15.68 monthly
Shop
Earth Escape Mattress Refurbished refurbished

Sleep sanctuary

Earth Escape Mattress Refurbished

  • 7 Layers

  • Up to 4250 Springs

  • 28cm Depth

  • Wool & Hemp layer

Super King £1,299
Or £31.40 monthly
Sold out
Earth Apex Mattress Refurbished refurbished

The peak of luxury

Earth Apex Mattress Refurbished

  • 8 Layers

  • Up to 5750 Springs

  • 30cm Depth

  • Silk, Cashmere & Mohair layer

Super King £1,679
Or £40.58 monthly
Shop
CLEARANCE Premium Zoned Mattress

Full body comfort

Premium Zoned Mattress

  • 3 Layers

  • 19cm Depth

  • 7 Support Zones

Super King £303
Or £25.25 monthly
Shop
CLEARANCE Comfort Zoned Mattress

Support made simple

Comfort Zoned Mattress

  • 3 Layers

  • 19cm Depth

  • Multiple Support Zones

Super King £267
Or £22.25 monthly
Shop

  • What size is Simba’s Super King Mattress?

    The Simba super king bed mattress is the largest mattress we offer, and it fits all standard UK Super King beds, measuring 180cmW x 200cmL. The depth of your super king mattress varies with the type of mattress you select; for example, our Earth range is packed with natural mattress materials and our signature sleep tech, with our Apex model measuring 30cm deep. But our Hybrid® Essential is just 20cm deep, so please check the product details before buying.

    If you’re concerned a Super King will be too big for your space, we recommend considering a King Size Mattress. Otherwise head over to All Mattresses for more details about our range. 

  • Is my super king mattress recyclable?

    Because we’re committed to sending no mattresses to landfill, all the super king size mattresses for sale at Simba are suitable for recycling via our collection service or specialist providers. If you return a mattress during your 200-night trial (or under our 10-year guarantee), it’ll be refurbished; any with too much wear and tear are recycled. And when your mattress reaches the end of its life, check out the specialised Simba Mattress Recycling Service on our site: pay a small fee, and we collect it for you. Any brand, any size – no Simba purchase necessary.       

    Find out more about our Mattress Recycling Service here.

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 Earth 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.

  • Earth 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, place your first order, and we’ll enter you into a monthly draw to win back the entire cost.

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