5 mattressesSimba Mattress Review UK 2026: Complete Range Tested & Compared
Brand score if you pick the right Simba
4.6/5 — Excellent
- Range
- 5 mattresses
- Default pick
- Hybrid · from £699
- Trial
- 200 nights
- Warranty
- 10 years
Free UK delivery · 200-night trial · 10-year warranty
Reviewed by
Sarah Mitchell
Founder & Editor-in-Chief
Tested by
Sarah, James, Emma, David, Rachel
Updated · Published · 17 min read · Contains affiliate links. Affiliate disclosure.
Our rating
4.6/5
Who is Simba Sleep? Britain's Most Innovative Mattress Brand
Simba Sleep has earned its reputation as the UK's premium hybrid mattress brand through relentless innovation and a commitment to British manufacturing.
Simba Sleep was co-founded in London in 2015 by James Cox and Andrew McClements. The McClements family had been in the mattress industry since 1979, bringing decades of expertise to the venture. What set Simba apart from day one was their scientific approach to sleep.
Before launching their first mattress in 2016, Simba worked with the Sleep To Live Institute, analysing body profile data from over 10 million sleepers — measuring 180 million data points. After testing 70+ prototypes, they created the original Simba Hybrid featuring their patented titanium Aerocoil spring technology.
Today, Simba is proudly 100% designed and manufactured in the UK. Their titanium springs are made in Leeds, foam layers in Middleton, and natural wool sourced from Hampshire. In 2025, they relocated their headquarters from London to Bristol to expand UK operations. With over 350,000 five-star reviews, Simba claims to be the most five-star rated mattress brand in the world.
Simba by the Numbers
Simba Sleep UK Timeline: Key Milestones
Simba Sleep founded in London
Co-founded by James Cox and Andrew McClements
Moved manufacturing to UK
Springs made in Leeds, foam in Middleton, wool from Hampshire
Launched Simba Hybrid Pro
Dual Aerocoil layers for enhanced support
Reached 350,000+ five-star reviews
Most five-star rated mattress brand globally
Simba Hybrid Ultra released
Flagship model with 7,300 Aerocoil springs
Headquarters moved to Bristol
Expanded UK operations and manufacturing
UK Manufacturing Commitment
Unlike many competitors who manufacture overseas, every Simba mattress is made in Britain. The titanium Aerocoil springs are crafted in Leeds, the Simbatex foam layers are produced in Middleton, and the natural wool is sourced from farms in Hampshire. This commitment to UK manufacturing ensures rigorous quality control, reduces carbon footprint from shipping, and supports British jobs and suppliers.
Quick Verdict: Is Simba Worth the Premium in 2026?
The short answer: Yes, if you value quality, support, and UK manufacturing. Simba is undeniably more expensive than Emma and Nectar, but you get patented titanium Aerocoil technology, superior edge support, and the peace of mind that comes with genuine British manufacturing. The higher Trustpilot rating (4.4/5 vs Emma's 3.1/5) suggests better overall customer satisfaction.
The Simba Hybrid is the one most people should try — 25cm, five layers, the volume seller. Step up to the Hybrid Pro if you want dual Aerocoil layers and a British wool comfort layer. For guest rooms and bunks, the Hybrid Essential (formerly GO Hybrid) is the honest thin Simba. The Ultra is a flagship climb, not a default.
What We Love About Simba
- Patented titanium Aerocoil spring technology — manufactured in Leeds, UK
- Exceptional edge-to-edge support, especially on Pro, Luxe and Ultra models
- 100% designed and made in the UK with British materials
- Outstanding motion isolation — up to 7,300 springs work independently
- 200-night trial with completely free returns
- Available in-store at John Lewis, Dreams & Furniture Village for testing
- Highest Trustpilot rating (4.4/5) among major UK mattress brands
- Natural wool layer on Pro models for temperature regulation
- 10-year warranty across the entire range
Things to Consider
- Premium pricing — Simba is more expensive than Emma and Nectar
- Heavy mattresses — Ultra weighs 55kg+ and may need two people
- Entry-level Essential model has fewer springs than the rest of the range
- Some find the medium-firm feel too firm initially (adjustment period)
- Occasional delivery slot availability issues in remote areas
- Limited softness options — no plush/soft models available
Which Simba should I buy?
Start here, then open the matching review. If two lines both sound like you, pick the cheaper one and use the 200-night trial. GO Hybrid is the old name for Hybrid Essential.
Simba Hybrid Essential
4
4-layer hybrid · 20cm · Medium-firm · springier, thinner · from £549
Buy it if: Guest room, bunk/cabin bed, student first hybrid
Skip it if: Nightly side sleep, or you can stretch to the 25cm Hybrid
Full Hybrid Essential reviewSimba Hybrid
4.4
5-layer hybrid · 25cm · Medium-firm · hotel bounce · from £699
Buy it if: Typical UK sleeper, mixed positions, first proper Simba
Skip it if: You want wool and a second spring layer — that is Pro
Full Hybrid reviewSimba Hybrid Pro
4.5
8-layer hybrid · 28cm · Medium-firm · wool + dual springs · from £899
Buy it if: Couples, motion, a bit more cushion than Hybrid without going plush
Skip it if: You only wanted Simba bounce — Hybrid is often enough
Full Hybrid Pro reviewSimba Hybrid Luxe
4.3
9-layer hybrid · 31cm · Medium-firm / plush · bamboo and wool · from £1249
Buy it if: You already liked Pro and still wanted a deeper sink
Skip it if: Standard sheets, a typical UK frame, or Pro already felt plush enough
Full Hybrid Luxe reviewSimba Hybrid Ultra
4.2
11-layer hybrid · 34cm · Plush · kapok / bamboo / wool stack · from £1749
Buy it if: You want the tallest Simba and will buy extra-deep sheets
Skip it if: You are buying height because it looks like the flagship
Full Hybrid Ultra reviewSimba Mattress UK Prices (August 2026)
From-prices below are Simba’s advertised starting prices for a single, checked 19 August 2026. Larger sizes cost more. Simba discounts heavily — always open the live product page.
| Model | Type | Depth | From (single) | Full review |
|---|---|---|---|---|
Simba Hybrid Essential Guest-room Simba | Hybrid (4 Layers) | 20cm | £549 | Read review |
Simba Hybrid The one most people should try | Hybrid (5 Layers) | 25cm | £699 | Read review |
Simba Hybrid Pro Best Simba we have used | Hybrid (8 Layers) | 28cm | £899 | Read review |
Simba Hybrid Luxe Plush step-up | Hybrid (9 Layers) | 31cm | £1249 | Read review |
Simba Hybrid Ultra Flagship climb | Hybrid (11 Layers) | 34cm | £1749 | Read review |
Current Sale
Up to 50% off + free bundle worth £400
0% Finance Available
12 months 0% APR or up to 4 years
Free Next Day Delivery
Free old mattress removal
Our Testing Methodology & Scores
We tested Simba mattresses using professional-grade equipment including XSensor pressure mapping, FLIR thermal imaging, and standardised durability rollers. Here's how Simba performed across our key criteria.
pressure Relief
Titanium Aerocoil springs provide excellent targeted pressure relief with zoned support across the body
spinal Alignment
Exceptional support for neutral spine position — the Pro and Ultra models excel for back pain sufferers
temperature Regulation
Open-cell Simbatex foam and spring airflow channels keep the mattress cool throughout the night
motion Transfer
Individually pocketed Aerocoil springs compress inwards, minimising partner disturbance effectively
responsiveness
Excellent bounce-back and responsiveness for combination sleepers — better than memory foam alternatives
edge Support
Industry-leading edge support across all models — you can sleep right to the edge without roll-off
durability
Titanium alloy springs are highly durable; minimal sagging detected after 30,000 roller passes
Simba Mattress Technology: Aerocoil & Simbatex Explained
Simba has developed patented technologies that differentiate their mattresses from competitors. Understanding these innovations helps you appreciate why Simba commands a premium price.
Titanium Aerocoil Springs
Patented conical pocket springs made from titanium alloy
How It Works
Unlike traditional steel springs, Simba's Aerocoil springs are made from titanium alloy and manufactured in Leeds, UK. Their unique conical shape means they compress inwards rather than outwards, dramatically reducing motion transfer. The springs are just 25mm tall but incredibly responsive, providing micro-adjustments as you move throughout the night.
Key Benefits
- Titanium alloy is lighter and more responsive than steel
- Conical shape compresses inwards — reduces motion transfer by 67%
- Up to 7,300 individually pocketed springs in Ultra model
- Manufactured in Leeds with strict quality control
- No body heat required to respond (unlike memory foam)
Found in: All Simba Hybrid models
Simbatex Foam
Open-cell foam designed for breathability and comfort
How It Works
Simbatex is Simba's proprietary foam technology featuring an open-cell structure that allows air to flow freely. Unlike traditional memory foam that traps heat, Simbatex actively promotes airflow while still providing excellent pressure relief and body contouring. The foam is manufactured in Middleton, UK.
Key Benefits
- Open-cell structure prevents heat build-up
- Provides pressure relief without the "stuck" feeling
- More responsive than traditional memory foam
- UK-manufactured with quality certifications
- Hypoallergenic and dust-mite resistant
Found in: All Simba Hybrid models
Natural Wool Layer
British wool for natural temperature regulation
How It Works
The Pro, Luxe, and Ultra models include a layer of natural wool sourced from Hampshire, UK. Wool is nature's temperature regulator — it wicks moisture away from the body and adjusts to keep you cool in summer and warm in winter. It also provides an additional comfort layer and is naturally fire-resistant.
Key Benefits
- Natural temperature regulation all year round
- Moisture-wicking keeps the sleep surface dry
- Sourced from Hampshire, UK farms
- Naturally fire-resistant (no chemical treatments)
- Adds luxurious soft comfort layer
Found in: Simba Hybrid Pro, Simba Hybrid Luxe, Simba Hybrid Ultra
Edge-to-Edge Support
Reinforced perimeter for consistent support
How It Works
Simba mattresses feature reinforced edges that prevent the "roll-off" feeling common with foam mattresses. The Aerocoil spring system extends to the very edge of the mattress, providing consistent support whether you sleep in the centre or near the sides. This is particularly beneficial for couples who need to maximise sleeping space.
Key Benefits
- Sleep right to the edge without feeling unstable
- No roll-together effect for couples
- Easier to sit on the edge of the bed
- Maximises usable sleeping surface
- Industry-leading edge support scores in our testing
Found in: All Simba Hybrid models (enhanced on Pro/Luxe/Ultra)
Aerocoil Spring Count by Model
More springs means better targeted support and motion isolation. Here's how the Simba range compares.
Simba Mattress Range: Which Model Is Right For You?
Simba offers 5 distinct mattresses in the UK, each designed for different support needs and budgets. Here's our detailed breakdown.
Best for:
Guest rooms, bunks, student first hybrid
Key features:
- Up to 1,000 Aerocoil springs
- Simbatex foam
- 20cm profile
- Formerly GO Hybrid
Best for:
All sleep positions, first proper Simba
Key features:
- Up to 1,900 Aerocoil springs
- Simbatex foam
- 9 support zones
- 25cm depth
Best for:
Couples, motion, a bit more cushion than Hybrid
Key features:
- Up to 4,800 Aerocoil springs (2 layers)
- Natural wool layer
- Supportcore spring base
- 28cm depth
Best for:
Deeper sink than Pro, extra-deep sheets
Key features:
- Up to 5,700 Aerocoil springs (3 layers)
- Bamboo and wool comfort
- 31cm depth
- Sheet tax is real
Best for:
Tallest Simba if you will buy extra-deep sheets
Key features:
- Up to 7,300 Aerocoil springs (3 layers)
- Kapok, bamboo and wool
- 34cm depth
- Flagship climb
Simba Mattress by Sleep Position
How Simba mattresses perform for different sleeping styles, based on our panel testing with 12 sleepers of varying body types.
Side Sleepers
Good pressure relief at shoulders and hips, though some lightweight side sleepers may prefer a softer mattress. The Hybrid and Luxe models are best suited.
Back Sleepers
Outstanding lumbar support and spinal alignment. The zoned Aerocoil springs provide firmer support exactly where back sleepers need it.
Stomach Sleepers
The medium-firm feel prevents excessive hip sinkage. Pro and Ultra models are ideal for stomach sleepers who need firm support.
Combination Sleepers
Highly responsive springs make position changes effortless throughout the night. Better than memory foam for restless sleepers.
Simba Mattress Suitability by Body Weight
Simba mattresses are particularly well-suited for average to heavier individuals. Here's our tested guidance on which models work best for different weight categories.
Lightweight (Under 9 stone / 57kg)
Recommended Models
Lighter sleepers may find Simba mattresses firmer than expected. The standard Hybrid offers the best balance; avoid the Ultra which may feel too firm.
Sleep Position Scores
Average (9-14 stone / 57-89kg)
Recommended Models
The ideal weight range for all Simba mattresses. You'll experience optimal pressure relief and support across the entire range.
Sleep Position Scores
Above Average (14-18 stone / 89-114kg)
Recommended Models
Simba excels for heavier sleepers. The Pro and Ultra provide exceptional support without bottoming out. Edge support remains strong.
Sleep Position Scores
Heavy (Over 18 stone / 114kg)
Recommended Models
The Ultra's 7,300 springs and 34cm depth provide outstanding durability and support for heavier individuals. Highly recommended.
Sleep Position Scores
Ideal for Heavier Sleepers & Couples
Simba's titanium Aerocoil springs provide exceptional support for heavier individuals without the compression issues common with all-foam mattresses. The strong edge support means couples can use the entire sleeping surface without roll-off. For couples with significant weight differences, the Hybrid Pro's dual spring layers respond independently to each sleeper.
60+ Industry Awards & Counting
Simba's innovation has been recognised by leading UK consumer organisations and industry bodies. Here's a summary of their major accolades.
Which? Best Buy
2018, 2020, 2022
Consumer Testing
Good Housekeeping Institute
2021, 2023, 2024
Product Testing
Ideal Home Approved
2022, 2023, 2024
Home & Lifestyle
T3 Awards
2019, 2020, 2021
Technology
British Innovation Award
2017
Design Innovation
Red Dot Design Award
2018
Design Excellence
Try Before You Buy
Unlike most online mattress brands, Simba is available in over 200 UK stores. You can test their mattresses at:
- John Lewis — All major stores nationwide
- Dreams — Extensive Simba display areas
- Furniture Village — Selected stores
Quality Certifications
Simba mattresses meet strict quality and safety standards:
- OEKO-TEX Standard 100 — Tested for harmful substances
- UK Fire Safety (BS 7177) — Natural wool is fire-resistant
- CertiPUR-US — Foam quality and emissions certified
Simba vs Other UK Mattress Brands
How does Simba stack up against Emma, Nectar, Brook + Wilde, and Hypnos? Here's our head-to-head comparison. Full Simba vs Silentnight buy page — default pick is Hybrid on a sale; Silentnight current models are untested.
| Brand & Model | Double Price | Trial Period | Warranty | Type | Firmness | Our Rating |
|---|---|---|---|---|---|---|
| Simba Hybrid Pro Recommended | £1199 | 200 nights | 10 years | Hybrid | Medium-Firm | 4.6 |
| Emma Original | £499 | 200 nights | 10 years | Hybrid | Medium-Firm | 4.7 |
| Nectar Premier | £599 | 365 nights | Lifetime years | Memory Foam | Medium-Firm | 4.4 |
| Brook + Wilde Lux | £1149 | 200 nights | 10 years | Hybrid | Choice of 3 | 4.5 |
| Hypnos Wool Origins 6 | £1399 | 60 nights | 10 years | Pocket Spring | Medium | 4.6 |
Simba vs Eve: volume hybrids
Current models: Simba Hybrid vs Eve Original Hybrid. Same £699 from-price band. Simba is bounce first. Eve is hug first.
Full Simba vs Eve UK decision — buy if / skip if, trial fees, small double trap.
Simba vs OTTY: Volume sellers
Hybrid vs Original Hybrid — same 25cm job, different springs and trial. Full Simba vs OTTY buy page.
Money: OTTY Original is the cheaper king on the tickets we last checked.
Trial: Simba 200 nights vs OTTY 100.
Feel: Aerocoil on top vs 16cm pockets under foam.
Simba vs Emma: Key Differences
Price: Emma is typically £200-400 cheaper at comparable levels.
Edge support: Simba leads at 9.1/10 vs Emma's 8.2/10 in our tests.
Trustpilot: Simba has 4.4/5 vs Emma's 3.1/5 — better customer satisfaction.
In-store testing: Simba available in John Lewis; Emma is online-only.
Manufacturing: Simba is 100% UK-made; Emma assembles in UK with some imported materials.
Simba vs Nectar: Key Differences
Construction: Simba uses hybrid springs; Nectar is all memory foam.
Trial period: Nectar offers 365 nights vs Simba's 200 nights.
Warranty: Nectar offers "forever warranty" vs Simba's 10 years.
Responsiveness: Simba's springs make position changes much easier.
Edge support: Simba significantly better for sitting on bed edge.
Compare Simba
Weighing Simba against something else? Go straight to the head-to-head.
Who Should Buy a Simba Mattress?
Based on our extensive testing, here's our honest recommendation on who Simba mattresses are best suited for — and who might want to look elsewhere.
Simba Is Ideal For
- Back sleepers — exceptional lumbar support and spinal alignment
- Back pain sufferers — zoned springs provide targeted support
- Heavier individuals — titanium springs provide durable, firm support
- Combination sleepers — highly responsive for position changes
- Those who want to try before buying — available in 200+ UK stores
- UK manufacturing supporters — 100% made in Britain
Consider Alternatives If
- You're on a tight budget — Emma and Nectar offer better value
- You're a lightweight side sleeper — may find Simba too firm
- You prefer a soft, plush feel — Simba is medium to medium-firm
- You want the longest trial — Nectar offers 365 nights
- You need to move the mattress alone — Simba is heavy (35-55kg)
Our Recommendation
For most UK buyers, start on the Simba Hybrid. Step up to the Hybrid Pro for dual Aerocoil layers and wool. Guest rooms belong on the Hybrid Essential. The Ultra is for people who already know they want the tallest stack.
Simba UK Trial Period, Delivery & Warranty Explained
Understanding Simba's policies before you buy helps you purchase with confidence. Here's everything UK customers need to know.
200
Night Trial
Risk-free home trial on all mattresses. Free collection if you're not satisfied.
FREE
Next Day Delivery
Free next day delivery available. Free old mattress removal on request.
10
Year Guarantee
Covers manufacturing defects and sagging beyond 25mm. Up to 2 replacements.
Trial Periods by Product Type
| Product Category | Trial Period | Return Process |
|---|---|---|
| All Hybrid Mattresses | 200 nights | Free collection & full refund |
| Hybrid Essential Mattress | 200 nights | Free collection & full refund |
| Pillows & Duvets | 30 days | Must be unused for return |
| Mattress Toppers | 30 days | Standard returns policy |
| Bed Frames & Bases | 30 days | Free returns within period |
How Simba Returns Work
Submit Request
Fill out the returns form on Simba's website with photos of the mattress.
Response Within 2 Days
Simba's team will respond within 2 business days to arrange collection.
Free Collection
Simba arranges free courier pickup. No need to repackage the mattress.
Full Refund
Receive refund to original payment method. Note: delivery charges not refunded.
What the 10-Year Guarantee Covers
Covered
- • Manufacturing defects affecting performance
- • Permanent sagging greater than 25mm
- • Spring malfunctions or structural issues
- • Up to 2 replacement mattresses per order
Not Covered
- • Normal wear and impressions under 25mm
- • Physical damage, stains, or misuse
- • Comfort preference (use trial period)
- • Delivery costs after 5 years for replacements
- • Transferred ownership (original buyer only)
What UK Customers Really Say About Simba
We analysed over 58,000 Trustpilot reviews to understand what British customers genuinely think about Simba mattresses. Here's an honest breakdown.
Trustpilot Rating
58,857 reviews
Highest rated UK mattress brand
Rating Distribution
Most Common Praise
- Exceptional back pain relief and support
- High-quality materials and construction
- Improved sleep quality from first night
- Excellent delivery service and communication
- Worth the premium price for the quality
Common Concerns Mentioned
- Higher price point than competitors
- Some find it firmer than expected initially
- Heavy to move and rotate
- Adjustment period of 2-4 weeks for some
Our Analysis: Why Simba Has the Best Reviews
Simba's Trustpilot rating of 4.4/5 is notably higher than competitors (Emma 3.1/5, Nectar 4.2/5). With 78% five-star reviews and only 7% one-star, the feedback is overwhelmingly positive. The most frequently mentioned positives are back pain relief and product quality — customers feel they receive genuine value despite the higher price.
The main criticisms relate to price (some expected more discounting) and initial firmness (many note a 2-4 week adjustment period). Importantly, delivery and customer service complaints are far fewer than with Emma, suggesting Simba's operations are more reliable. Their in-store availability at John Lewis also builds customer confidence.
Frequently Asked Questions About Simba Mattresses
Common questions UK buyers ask about Simba mattresses, answered by our testing team.
12+ years experience
Sarah Mitchell
Founder & Editor-in-Chief
Former Sleep & Wellness Editor, The Telegraph
Sarah brings over a decade of experience as Sleep & Wellness Editor at The Telegraph, where she reviewed 200+ mattresses and established rigorous testing standards. She founded Best Mattress UK to provide unbiased, expert guidance for British consumers.
Continue Your Research
Not sure if Simba is right for you? Explore our other resources to make an informed decision.