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From £1,999
Or as low as £41.80 monthly
Based on single mattress
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The Simba Hybrid® Ultra Mattress has a rating of ["4", "7"], based on 468 reviews.

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Our products benefit from ongoing innovation. Reviews attributed to a product model reflect views customers have shared for prior design iterations of the same model, as well as the improved iteration offered today.

& 6 Awards

Simba Hybrid® Ultra Mattress

Our dream mattress. A luxurious cocooning fusion. Thirteen layers of remarkable natural materials and most advanced signature tech.

8,500 Springs 34cm Depth 13 Layers FusionCool™
Pure Lift


Medium soft

Medium firm


Hybrid® Ultra Highlights

  • Luxury, visionary design. More of our signature tech than ever before, combined with high-performance natural materials.
  • Optimum support. Our highest ever spring count offers more personalised contouring and supports pressure relief.
  • Enhanced elasticity. A double layer of Simbatex® foam. For more luxurious cushioning and comfort.
  • Innovative FusionCool™. Our own blend of kapok, wool & bamboo for an extra fresh top layer.
  • Boosting PureLift®. A unique blend of latex & coconut for superb support & breathability.
  • Breathable cover. Knitted cover supports breathability and keeps mattress fresh.
  • Made in the UK. In specialist mattress factories.
  • Simba recycling available. Suitable for recycling via our collection service or specialist providers.
  • Includes complimentary Mattress Protector worth up to £169.

Hybrid® Ultra: Tech Spotlight

FusionCool® top layer

Stay Fresh. Stay Dry. 

Our tech team were laser-focussed on creating the most comfortable top layer for the Ultra. In lab tests, a combination of breathable wool, airy bamboo and charcoal was the best performer. But there was something missing.

Meet silky-soft kapok. Found in the rainforests of Southeast Asia, kapok is one of the lightest plant fibres on earth, with an air content of 80% and a fine wax coating that makes it moisture resistant. The high air content makes it breathable, resulting in enhanced airflow and fresher sleep.

More air. More fresh.

Simbatex® foam technology




We know being too hot stops us sleeping well. That’s why our tech team created cushioning Simbatex® foam in the first place. But the Ultra is the only Simba mattress to have a revolutionary, double layer of it.

Simbatex is an structure foam, which is less dense and offers much better, springier elasticity and more airflow; it’s also infused with graphite, known to dissipate heat for a fresher night's sleep.

Your sleep, boosted.

Purelift™ flexible support

Being inventive isn’t always about creating new materials; sometimes it’s about finding fresh ways to use traditional ones. Which is exactly what our tech team did with latex and, coconut.

PureLift™ is the fusion of elastic latex and breathable coconut fibres, famous for their properties of resistance and bounce. In product testing, this unique blend created an incredible spring-like layer with superb airflow and pressure distribution, designed to adapt to your body shape to provide exceptional and complete support.

Our highest spring count ever

Best Aerocoil® spring comfort

x4 layers

Best in range

Designed to
limit motion


Our technologists insisted on 8,500 springs in the Ultra, more than any other Simba mattress. They said it was the path to perfection, and we couldn’t argue with that.

4,000 titanium alloy Aerocoil® micro springs sit in the upper layers. You won’t be able to feel them, but they compress individually in response to your body, supporting pressure relief and helping to limit the transfer of movement.

3,500 high carbon steel Aerocoil® micro springs sit further down the mattress to maximise support, gently pushing fresh air through the mattress as they compress.

The Hybrid® Ultra also features our SupportCore™ base, with 1,000 pocketed barrel springs to ensure edge-to-edge support.

Hybrid® range features

What’s special about a Simba?

Why Simba suits everyone

All shapes, sizes & sleep positions

Simba is the most five-star rated mattress brand in the world. Because our unique Hybrid® mattress technology is designed to feel perfectly comfortable to everyone, no matter their shape or sleeping style.

It’s about offering improved pressure relief and full body alignment; Simba’s signature tech is designed to create a ‘hugged’, cradled feeling in the upper layers, and more support in the base layers, with adjustment for hips and shoulders.

P.S. We rate our Hybrid® Deluxe mattresses as ‘medium-firm’. There’s no universal firmness rating system in the industry, so we’ve aimed to align our designs with independent studies which show this is ideal for sleep quality and comfort.

too soft

Lacks support


For full body alignment


Lacks cushioning

The Hybrid® Ultra: Layer by Layer

Working together for maximum comfort

Award winning tech

See all awards
Mattress Ultra Hybrid: The Telegraph 2023
Mattress Ultra Hybrid: T3 Platinum Award
Mattress Ultra Hybrid: Good Homes Approved
Mattress Ultra Hybrid: Express Editors Choice
Mattress Ultra Hybrid: Independent Best Buy 2024
Mattress Ultra Hybrid: expert reviews best buy


A force for good. 

Which mattress range is right for you?

Budget Friendly Mattress Essential Hybrid: Sleep Hero Recommended


4 Layers
Up to 1000 Springs
20cm Depth
5 Support zones

Extra Tech


4 Layers
Up to 1500 Springs
23cm Depth
7 Support zones

1/2 Million Sold Mattress Original Hybrid: Good Housekeeping Institute 2024


5 Layers 
Up to 2500 Springs
25cm Depth
9 Support zones

Bestselling Mattress Pro Hybrid: T3 Awards 2022 Inc. Protector worth up to £169


8 Layers
Up to 5000 Springs
28cm Depth
Wool top layer
+ Free protector

Luxury Comfort & Support Mattress Luxe Hybrid: Good Housekeeping Institute 2024 Inc. Protector worth up to £169


11 Layers
Up to 6000 Springs
31cm Depth
Bamboo & Wool top layer
+ Free protector

Currently viewing

The best of everything Mattress Ultra Hybrid: The Telegraph 2023 Inc. Protector worth up to £169


13 Layers
Up to 8500 Springs
34cm Depth
Kapok, Bamboo & Wool top layer
+ Free protector

Oasis of comfort Earth Mattresses: Zero Wasted


6 layers
Up to 3,250 Springs
25cm Depth
Hemp and Flax layer

Sleep sanctuary Earth Mattresses: Zero Wasted


7 layers
Up to 4,250 Springs
28cm Depth
Wool and Hemp layer

The peak of luxury Earth Mattresses: Zero Wasted


8 layers
Up to 5,750 Springs
30cm Depth
Silk, Cashmere and Mohair layer

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