Simba Hybrid Pro Mattress

The Simba Hybrid Pro is a premium hybrid mattress built around a dual-layer system of patented Aerocoil® titanium alloy microsprings and a SupportCore™ steel spring base, topped with British wool, graphite-infused Simbatex® foam and CertiPUR® certified foam layers. At 28cm deep with 4,800 springs in total, it delivers a medium-firm feel that balances targeted pressure relief with robust spinal support. The result is a mattress that sleeps cooler, isolates partner movement and suits a wide range of sleeper types.

Who Is This Mattress For?

A premium hybrid mattress best suited to sleepers who want medium-firm support, effective cooling and minimal partner disturbance.

Medium Firm Feel - 4/6: A supportive feel with added stability. Ideal for people who change sleeping position during the night and need a balance of comfort and support.

Best for

• Back sleepers - helps keep the spine aligned with a supportive spring base and responsive foam
• Front sleepers - prevents hips from sinking while maintaining surface comfort
• Side sleepers - cushions shoulders and hips to reduce pressure points
• Combination sleepers - adapts easily as you change position during the night
• Couples - minimises motion transfer so movement stays on one side
• Hot sleepers - breathable materials and cooling foam help regulate temperature
• Allergy sufferers - materials designed to resist dust mites and free from harmful chemicals
• Sleepers up to 114kg (18st) per side

Not ideal for

• Sleepers who prefer a very soft, sink-in feel
• Lightweight side sleepers who may find the medium-firm tension less cushioned than they need

Inside This Mattress

Stratos® Cool-Touch Knitted Cover
What it is: A 530g knitted polyester zip-off cover treated with Stratos® technology, designed to feel cool against the skin from the moment you lie down.
How it helps you sleep: The cool-touch surface helps regulate skin temperature from the outset, and the removable, machine-washable design makes keeping things fresh and hygienic straightforward.

British Wool Layer
What it is: A natural wool comfort layer sourced from British farms, sitting directly beneath the cover as the first layer of padding.
How it helps you sleep: Wool is a natural temperature regulator - breathable enough to keep you cool in summer and insulating enough to retain warmth in winter. Its hygroscopic properties also help draw moisture away from the body during the night.

Aerocoil® Titanium Alloy Microsprings (Two Layers - Up to 3,800 Springs)
What it is: Simba's patented conical microsprings, made from titanium alloy and manufactured in Leeds. Two layers of these 25mm springs sit at the top of the mattress where comfort is needed most.
How it helps you sleep: Each spring compresses independently to follow your body's contours and reduce pressure on joints. As they compress, they push fresh air upwards through the mattress, actively cooling the sleep surface. Because they move separately, your partner's movements stay on their side.

Graphite-Infused Simbatex® Foam
What it is: Simba's own advanced foam material, infused with graphite particles to enhance heat dissipation. It is hypoallergenic and produced using an eco-friendly manufacturing process.
How it helps you sleep: Simbatex® has over five times more airflow than standard memory foam, with the graphite drawing warmth away from the body. You get the contouring comfort of memory foam without the heat retention, and dust mites cannot survive on the material, making it well suited to allergy sufferers.

CertiPUR® Foam Support Layer
What it is: A high-quality foam layer certified to CertiPUR® standards, meaning it is free from heavy metals, harmful chemicals and ozone-depleting substances.
How it helps you sleep: Its open-cell structure promotes airflow through the mattress, while the layer itself adds responsive support and helps the mattress maintain its shape and performance over time.

SupportCore™ Spring Base (Up to 1,000 Steel Springs)
What it is: A durable steel spring base layer that forms the structural foundation of the mattress, engineered to prevent roll-off at the edges.
How it helps you sleep: This base layer delivers the firm, consistent support your spine needs regardless of where you sleep on the mattress. Edge-to-edge support means the full sleep surface is usable, which is particularly beneficial for couples.

Simba Regen Base Layer
What it is: A supportive foam base layer made from recycled materials, designed to enhance durability and provide a stable platform for all the layers above.
How it helps you sleep: It stabilises the mattress structure, contributing to consistent comfort across the entire sleep surface night after night.

Specification

Dimensions & Weights

How it Compares

Vs firmer mattresses: The Hybrid Pro's medium-firm feel offers noticeably more pressure relief than a firm or extra-firm option, thanks to the dual Aerocoil® microspring layers and Simbatex® foam that cushion the shoulders and hips. If you sleep on your side or regularly share the bed, the Hybrid Pro will feel more accommodating without sacrificing the support your spine needs. Firmer mattresses are better suited to heavier sleepers or those who want the most rigid surface possible.

Vs softer mattresses: The Hybrid Pro provides stronger structural support beneath its comfort layers than a soft or medium option in the Simba range. Softer mattresses may feel more immediately plush but can allow the hips to sink too far for back and front sleepers, and may not hold their shape as consistently over time. The Hybrid Pro's SupportCore™ base keeps the sleep surface level and supportive for combination sleepers and those sharing the bed.

Vs premium models (Hybrid Luxe and Ultra): The Hybrid Pro shares Simba's core Aerocoil® spring technology, British wool layer and graphite-infused Simbatex® foam with higher-end models. Where the Luxe and Ultra differ is in the number of spring layers and the depth of the comfort layers - the Luxe adds a third Aerocoil® layer and bamboo fillings, while the Ultra goes further still with kapok. If you want Simba's signature feel at a more accessible price point, the Pro delivers it without compromise on build quality.

10 Year Guarantee

The Simba Hybrid Pro is backed by Simba's 10-year manufacturer's guarantee against defects in materials and workmanship. Given the quality of construction - CertiPUR® certified foams, titanium alloy Aerocoil® springs manufactured in Leeds and a durable SupportCore™ base - this is a mattress built to perform night after night. If it fails within that period, Simba will exchange it for a brand new one.

Awards & Accreditations

Product of the Year 2026 - Awarded by Product of the Year, the UK's largest consumer survey of product innovation. This is voted for by tens of thousands of consumers and is one of the most widely recognised quality marks in British retail.

Good Housekeeping Institute Approved (2026) - Independently tested and approved by the Good Housekeeping Institute, which puts products through rigorous assessments before granting its approval mark.

Ideal Home Approved - Recognised by Ideal Home magazine as a product that delivers on comfort, design and value - one of the most trusted endorsements in the home and interiors space.

The Independent - Indy/Best (2024) - Featured as one of the best mattresses available by The Independent's review team, based on independent testing and editorial assessment.

National Bed Federation (NBF) Approved - Independently verified to meet strict UK standards for quality, safety and responsible manufacturing.

GenM Menopause Friendly - Recognised for its ability to ease, relieve or support one or more of the 48 symptoms and signs of menopause, including temperature regulation.

Complete your Sleep Setup

Get the most out of your new Simba Hybrid Pro by adding the Simba Performance Mattress Protector. Designed to protect against spills, stains, dust mites and everyday wear, this breathable and hypoallergenic protector helps keep your mattress fresh, clean and performing at its best for longer.

Soft, quiet and temperature-regulating, it adds an extra layer of comfort without changing the feel of your mattress - the perfect finishing touch to your sleep setup.

Why Add a Mattress Protector?

• Protects against spills, stains and everyday wear
• Helps extend the life of your mattress
• Breathable and temperature regulating
• Hypoallergenic - ideal for allergy sufferers
• Machine washable for easy care

Bundle and save when purchased with your Simba Hybrid Pro Mattress.

Ready to Upgrade Your Sleep for Better Rest?

The Simba Hybrid Pro delivers a rare combination at this price point: dual-layer Aerocoil® spring technology, breathable natural wool, graphite-infused cooling foam and a washable Stratos® cover, all in a single mattress with a 10-year guarantee and 200-night trial behind it. Whether you share a bed, run warm at night, or simply want a mattress that works however you sleep, this is a genuinely strong option to consider.

Select your size above and add to basket. Free UK delivery, your 200-night trial and your 10-year guarantee are all included.

200 Night Mattress Trial

Choosing a mattress online takes trust. That's why the Simba Hybrid Pro comes with a 200 night comfort guarantee - if it doesn't feel right, we'll exchange it. View the full mattress trial policy.

Compared to other mattress brands worldwide, Simba Sleep has won the most five-star reviews, a testament of their success.

They proudly hold the distinction of being the first sleep brand in the UK to receive B Corp certification. B Corp certification recognises companies that actively promote social and environmental change through their business operations. They also helped make a plan for the British Retail Consortium to tackle climate change.

Selling quality mattresses, beds, pillows, duvets, and bedding, they aim to help people sleep better all over the world.