Soft
Medium soft
Medium firm
Firm
THE BEST OF EVERYTHING
Hybrid® Ultra Mattress has a rating of ["4", "7"], based on 757 reviews.
View ReviewsHybrid® Ultra Mattress
Our dream mattress. A luxurious cocooning fusion. Eleven layers of remarkable natural materials and most advanced signature tech.
7,300 Springs
34cm Depth
11 Layers
FusionCool™
freshness
freshness
Pure Lift
7,300 Springs
34cm Depth
11 Layers
FusionCool™
freshness
freshness
Pure Lift
Soft
Medium soft
Medium firm
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.
- Knitted, breathable top cover with 'cool-touch' Stratos® tech zips off for easy washing or replacing
- Made in the UK. In specialist mattress factories.
- Simba recycling available. Suitable for recycling via our collection service or specialist providers.
- Includes complimentary Hybrid Pillows Hybrid 3-in-1 Duvet and Mattress Protector worth up to £836.
Hybrid® Ultra: Tech Spotlight
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.
Our highest spring count ever
Best Aerocoil® spring comfort
Our technologists insisted on 7,300 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.
3,800 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.
2,500 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® 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
Simba
For full body alignment
TOO FIRM
Lacks cushioning
The Hybrid® Ultra: Layer by Layer
Working together for maximum comfort
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Simba mattresses are designed and made in the UK.
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Dimensions
- 90X190 UK SINGLE MATTRESS
- 135X190 DOUBLE MATTRESS
- 150X200 UK KING MATTRESS
- 180x200 UK SUPER KING MATTRESS
Mattress Technology
The Simba Hybrid® Ultra Mattress is 34cm deep and includes 8 carry handles (Single size has 4). We’ve used responsibly sourced materials where possible, and specialist removal and recycling is available via our trusted third partner.
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Layers 1
530g knitted polyester top cover (due to updated covers fabric spec may vary slightly between 02/24 and 11/24) with zip-off, washable sleep surface and Stratos® technology.
133g knitted polyester internal cover to protect mattress layers when top cover is removed for washing -
Layer 2.
(250gms) Wool (80%), charcoal-infused bamboo (10%), & kapok fibres (10%).
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Layers 3 & 4.
CertiPUR™ certified Simbatex® foam (graphite infused).
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Layer 5.
Latex and coconut fibre blend.
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Layers 6 & 7.
CertiPUR® foam border, conical Aerocoil™ pocket springs, manufactured in Leeds from titanium alloy and high-carbon steel, enclosed in a polypropylene pocket.
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Layer 8.
CertiPUR® foam.
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Layer 9.
CertiPUR® foam border; up to 2,500 Aerocoil® springs manufactured in Leeds from high-carbon steel, enclosed in a polypropylene pocket. (high carbon steel)
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Layer 10.
Up to 1000 barrel springs made from high carbon steel
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Layer 11.
CertiPUR® foam base
4 handles for ease of movement (excluding Super King Size).
8 handles for ease of movement (Super King Size only).
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Rotate your mattress once a month for the first three months, then every three months or seasonally thereafter.
Top cover: the top section of the outer cover can be zipped off and washed at 40°C on a reduced spin cycle, then line dried (If it can’t be washed/dried/replaced in the same day, the inner fabric cover is suitable to sleep on.)
- Do not use bleach
- Do not tumble dry
- Do not iron
- Do not dry clean
Base cover: the grey base fabric can be cleaned with a soft, damp, clean cloth using small circular motions.
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Find out more about mattress financing and spreading the cost of your new mattress with our wide range of finance options.
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Delivery is free as standard to most of the UK.In most cases, we deliver seven days a week when you pick a date at checkout. Due to the weight of this mattress we strongly recommend delivery to your chosen room and that you ensure children are kept at a distance from delivery and unboxing. If you choose to return your mattress during your 200-night trial, returns are also free in most of the UK.
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We offer a 200-night mattress trial period across our ranges. So if you decide the Ulra Mattress isn’t for you, just give us a call within that time; we’ll arrange free collection and refund the cost of your mattress or financing payments already made (excluding delivery charges).
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Every Simba mattress comes with a ten-year guarantee. If it fails during that time, we’ll exchange it for a brand new one.
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Foams in our Hybrid® Ultra are certified to CertiPUR® requirements, so these foams contain no heavy metals like mercury or lead.
SUSTAINABILITY
A force for good.
Essential
4 Layers
Up to 1000 Springs
20cm Depth
5 Support zones
Original
5 Layers
Up to 1900 Springs
25cm Depth
9 Support zones
Pro
8 Layers
Up to 4800 Springs
28cm Depth
Wool top layer
Luxe
9 Layers
Up to 5700 Springs
31cm Depth
Bamboo & Wool top layer
Currently viewing
Ultra
11 Layers
Up to 7300 Springs
34cm Depth
Kapok, Bamboo & Wool top layer
325,000+ five-star reviews* (and counting)
Ridiculously comfy
Everything's been great. The delivery, our mattress, our sleep!!! It's ridiculously comfy. Thankyou!
Abigail W
Hybrid® Ultra Mattress
So far so good!
We have immediately felt the difference with the Hybrid Ultra. Fantastically comfortable and loads of support.
Darryl P
Hybrid® Ultra Mattress
Two peas in a Simba pod
We love our new Hybrid® Ultra Mattress and have both been sleeping like babies for the past couple of weeks. It's comfortable, supportive, but not too hard or too soft. Highly recommended.
Erik L
Hybrid® Ultra Mattress
We strive to deliver the best possible products and services. Reviews attributed to a model of a product or to services reflect reviews left for previously offered design iterations of a model of product or a service, as well as the optimized and improved iteration of the product or service offered today. *Please visit: simbasleep.com/pages/reviews for more information.
Any other questions?
No matter which of our mattresses you choose, you’ll get our innovative blend of sleep tech, carefully selected to offer Simba’s signature support. The difference lies in the layers and the number of micro springs in each one.
Let’s start with the Essential mattress, our most wallet-friendly Hybrid® design, which has four layers and up to 1,000 springs, our game-changing Hybrid® Original has five layers and up to 1,900 springs, our Pro up to 4,800 springs and eight layers, the Luxe up to 5,700 springs and nine layers, and coming in at the top of the range is our Ultra, with up to 7,300 springs and eleven luxurious layers.
Let’s start with the Essential mattress, our most wallet-friendly Hybrid® design, which has four layers and up to 1,000 springs, our game-changing Hybrid® Original has five layers and up to 1,900 springs, our Pro up to 4,800 springs and eight layers, the Luxe up to 5,700 springs and nine layers, and coming in at the top of the range is our Ultra, with up to 7,300 springs and eleven luxurious layers.
All our Simba beds are designed to match perfectly with your mattress. Here are a few of our most
popular:
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Platform top
(flat top, can include divans) -
Slats
(evenly spaced boards) -
Sprung divan or box spring
(frame with springs set in)
The Deluxe range features our best signature Hybrid® tech; a damaged bed
could impact its performance. We suggest trying a supportive bed base – like one of our Ottoman, Divan, Wooden
or Upholstered models – for maximum support.
If you have a slatted base, quickly whip out the tape measure to check the slats aren't more than three
inches apart. And if they are, a baseboard will help.
You’ll be pleased to know the answer is no: you don’t have to turn it, but you do need to rotate it. It’s one of the very few conditions of your 10-year warranty. Simply take it for a 180 degrees spin once a month for the first 6 months, then drop down to once every three months for the rest of its life. This will help it stay comfortable for longer.
We're not medical professionals, and we can't judge what's right for your back. All we can say is that we've received huge amounts of positive feedback from sleepers who tell us they've suffered from aches and pains and that they feel that their Simba Mattress has helped them to finally achieve a great night’s sleep.
Our most premium mattresses feature our Supportcore™ spring base, Simbatex® technology and our patented Aerocoil® springs for responsive support. Looking for optimum comfort? Try our luxurious Ultra mattress, which has our highest ever spring count and is designed for personalised contouring and pressure relief. If you think that might be what you're looking for, remember we also offer a 200-night trial. So you can really put your new mattress to the test.
Our most premium mattresses feature our Supportcore™ spring base, Simbatex® technology and our patented Aerocoil® springs for responsive support. Looking for optimum comfort? Try our luxurious Ultra mattress, which has our highest ever spring count and is designed for personalised contouring and pressure relief. If you think that might be what you're looking for, remember we also offer a 200-night trial. So you can really put your new mattress to the test.
At Simba, we’re committed to sending no mattresses to landfill. As part of this, we offer convenient mattress recycling for any mattress, not just your Simba one. And there’s no purchase necessary, so it’s easier for you to play your part.
- Simba Hybrid®
- Simba Hybrid® Pro
The Simba Hybrid®
Our bestselling mattress,now in its 4th generation
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One spring-comfort layer, for cooling comfort where it counts - at the top of the mattress
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Up to 2,500 Aerocoil® springs for no-pressure support
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Super soft and breathable sleep surface
The Simba Hybrid® Pro
Level up on comfort with ourlatest mattress innovation
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Two spring-comfort layers for advanced comfort and airflow
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Up to 5,000 Aerocoil® springs for gravity-defying support
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Our thickest, plushest sleep surface
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Additional temperature regulating British wool layer