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.

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, DUVET, PROTECTORS WITH SELECTED MATTRESSES

Ends 16/05/25, 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.

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 fresh 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™ 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

King £2,999
Or £72.49 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 

King £1,799
Or £43.48 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

King £1,299
Or £31.40 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

King £899
Or £21.73 monthly
Shop

Need help choosing a mattress?

Try our mattress quiz
Hybrid® Essential Mattress hybrid

Free with your Essential Mattress

1 FREE Pure Pillow

With any single mattress
WORTH £60

2 FREE Pure Pillows

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

Signature tech

Hybrid® Essential Mattress

  • 4 Layers

  • Up to 1000 Springs

  • 20cm Depth

  • 5 Support zones

King £749
Or £18.10 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

King £2,099
Or £50.74 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

King £1,799
Or £43.48 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

King £1,299
Or £31.40 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

King £1,349
Or £32.61 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 £669
Or £16.17 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 £479
Or £11.57 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 £359
Or £29.91 monthly
Shop
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 £519
Or £12.54 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

King £549
Or £13.27 monthly
Shop
Earth Escape Mattress Refurbished refurbished

Sleep sanctuary

Earth Escape Mattress Refurbished

  • 7 Layers

  • Up to 4250 Springs

  • 28cm Depth

  • Wool & Hemp layer

King £1,149
Or £27.77 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

King £1,449
Or £35.02 monthly
Shop
Simbatex® Essential Mattress Refurbished refurbished

budget friendly

Simbatex® Essential Mattress Refurbished

  • 3 Layers

  • 19cm Depth

  • Graphite/Simbatex open cell foam, UK sizes only

King £259
Or £21.58 monthly
Sold out
Simbatex® Foam Mattress Refurbished refurbished

Cooler, Fresher Foam

Simbatex® Foam Mattress Refurbished

  • 4 Layers

  • 25cm Depth

  • Graphite/Simbatex open cell foam, UK sizes only

King £449
Or £10.85 monthly
Sold out
CLEARANCE Premium Zoned Mattress

Full body comfort

Premium Zoned Mattress

  • 3 Layers

  • 19cm Depth

  • 7 Support Zones

King £279
Or £23.25 monthly
Shop
CLEARANCE Comfort Zoned Mattress

Support made simple

Comfort Zoned Mattress

  • 3 Layers

  • 19cm Depth

  • Multiple Support Zones

King £234
Or £19.50 monthly
Shop

  • 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 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.

Previewing: PRO Theme - Release 0699313

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