Simba Review

Updated April 2026 — Long-term tests conducted, prices adjusted downwards on the Hybrid and benchmarks updated with 2025-2026 feedback.

Read also: Check out our ranking of the best mattresses 2026 to compare this model with the best current offers.

Overall Brand Rating

Simba Rating: 8.8/10

Criterion	Rating
Comfort	9/10
Lumbar support	9/10
Durability	9/10
Value for money	8/10
Temperature regulation	9/10
Customer service	8.5/10

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History of the Simba Brand

Simba is a British brand founded in 2015 in London by James Cox and Andrew McClelland. Simba's distinctive feature: its founders come from five generations of mattress experts, a family lineage of spring manufacturers that gave the brand unique technical expertise from launch.

As early as 2016, Simba launched the Hybrid, its hybrid mattress combining foam and Aerocoil micro-springs. The concept was innovative in a bed-in-a-box market then dominated by 100% foam mattresses (Casper, Emma). The year 2018 saw Simba raise over £75 million to fund its European expansion.

In 2020, Simba crossed the one-million-mattress milestone in the UK and accelerated its deployment in France, Germany and the Netherlands. The years 2023-2024 were marked by the development of 4th and then 5th generation Aerocoil technology, with thinner, more responsive and more durable titanium-steel micro-springs.

In 2025 and 2026, Simba consolidated its position as European leader in hybrid mattresses, with a strengthened presence in France and an expansion of services (express delivery, old mattress take-back, recycling programme). The brand also improved its temperature regulation thanks to new open-cell foam layers that dissipate heat 30% more effectively than the previous generation.

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Simba's Philosophy

Simba's philosophy is based on a technical premise: foam alone is not enough. While 100% foam mattresses offer enveloping comfort, they fall short in dynamism, tend to retain heat and have inferior durability compared to spring structures.

Simba therefore chose the hybrid path from its inception, combining the best of both worlds: the comfort of memory foam and the dynamic support of springs. This "best of both worlds" approach is at the heart of every product the brand makes.

The other pillar of Simba's philosophy is continuous innovation. Unlike brands like Emma that focus on a stable universal product, Simba evolves its technology every year — the Aerocoil micro-springs are already in their 5th generation. This culture of constant improvement translates into technically more advanced but also more expensive products.

Finally, Simba focuses on generosity of trial: 200 nights, double that of most competitors. This choice reflects the brand's confidence in its product and reduces perceived risk for the buyer.

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Technologies and Innovations

5th-Generation Aerocoil Micro-Springs

Simba's signature technology. Aerocoil micro-springs are made from titanium steel, an alloy lighter and more resistant than standard steel. Each mattress contains 2500 per m², or approximately 5000 springs in a 160x200 mattress. Each spring is individually pocketed in a fabric pouch, allowing it to function completely independently.

The 5th generation, introduced in 2025, brings three major improvements:

• Conical shape: Progressive pressure adaptation, offering more natural support
• Titanium coating: Increases durability by 25% compared to the previous generation
• Micro-perforations: Perforations in the fabric pouches that improve airflow

Simba-Pure Foam

Simba uses its own memory foam formulation, called Simba-Pure. This open-cell foam offers the enveloping comfort of classic memory foam while dissipating heat better thanks to its more open cellular structure. In 2026, Simba-Pure foam is OEKO-TEX Standard 100 certified and contains no CFCs or formaldehyde.

Active Temperature Regulation

The combination of micro-springs (which create air spaces) and open-cell foam creates an effective temperature regulation system. Air circulates through the springs, body heat is absorbed by the foam then dissipated by convection. In 2026, the new foam layers improve heat dissipation by 30% compared to the 2023 generation.

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Simba Product Range

Simba Hybrid

The brand's iconic model and bestseller.

Composition and layers:

• Top layer: Simba-Pure memory foam (3 cm) for enveloping and breathable comfort
• Middle layer: transition foam support layer (2 cm)
• Core: 2500 5th-generation Aerocoil micro-springs per m² for dynamic support
• Base: high-resilience foam (16 cm) for structural durability

Specifications:

Specification	Value
Thickness	25 cm
Firmness	Medium-firm (6/10)
Weight (160x200)	~27 kg
Technology	Hybrid foam + Aerocoil micro-springs
Number of springs	~5000 (160x200)
Certification	SGS + OEKO-TEX Standard 100
Cover	Integrated hypoallergenic
Warranty	10 years

Sizes and prices:

Size	Indicative price
90x190 cm	~€449
140x190 cm	~€599
160x200 cm	~€699
180x200 cm	~€849

Prices observed on the Simba France website, subject to change depending on seasonal promotions.

Who is it for? Sleepers seeking the best hybrid technology on the market, couples, hot sleepers, people suffering from back pain. Suitable for sleepers weighing 55 to 130 kg, recommended for all sleeping positions.

Pros:

• 5th-generation Aerocoil technology, the most advanced in the hybrid segment
• 2500 micro-springs per m² for targeted and responsive support
• Superior temperature regulation thanks to the hybrid structure
• 200-night trial, the most generous period on the market
• SGS and OEKO-TEX certifications for material safety

Cons:

• Premium price of €699, above the majority of competitors
• Medium-firm firmness that may surprise fans of plush mattresses
• Unfamiliar hybrid feel for those who have never slept on springs
• 27 kg weight makes solo handling difficult

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In Detail: 5th-Generation Aerocoil Technology

The Aerocoil micro-springs are Simba's technical signature and constitute the brand's main differentiating argument. Unlike standard pocket springs (40-50 mm diameter), Aerocoil springs are micro-springs measuring just 25 mm in diameter, enabling a density of 2500 per m² — approximately 5 times more than a traditional spring mattress.

This higher density offers several advantages:

• More precise support: Each spring covers a smaller area, enabling finer adaptation to body contours
• Better motion isolation: The small spring size reduces vibration propagation from one point to another across the mattress
• Increased durability: Titanium steel micro-springs resist fatigue better than standard springs

The 5th generation (2025) introduces a titanium coating that increases the estimated spring lifespan to 12-15 years, and micro-perforations in the pouches that improve airflow by 20%.

In Detail: The 200-Night Trial

Simba offers a 200-night trial, the most generous period on the online mattress market in 2026. This offer is made possible by the brand's confidence in its product and a well-established return logistics system.

The process is simple: you order, sleep on the mattress for a minimum of 30 nights (recommended adaptation period per Simba), and if the comfort doesn't suit you, contact customer service. Simba arranges free collection by a partner courier and refunds you in full within 14 days. Returned mattresses are recycled or donated to charities.

Simba's return rate is below 6%, meaning over 94% of buyers keep their mattress. These 200 nights are both an essential psychological safety net for the consumer and a stamp of confidence from the brand.

In Detail: Hybrid Temperature Regulation

Temperature regulation is one area where Simba's hybrid technology excels. The system relies on three complementary mechanisms:

• Air circulation via springs: The spaces between Aerocoil micro-springs create natural air channels that enable constant convection through the mattress
• Open-cell foam: Simba-Pure foam lets air pass through rather than trapping it, unlike classic memory foams
• Convection dissipation: Body heat is absorbed by the foam, then dissipated by the air circulating through the springs

In 2026, Simba's tests show a surface temperature 2 to 3°C lower than an equivalent-quality 100% foam mattress. For hot sleepers or couples, this difference is noticeable from the very first nights.

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What Users Say

Simba displays over 75,000 aggregated reviews in Europe with an average rating of 4.6/5 on Trustpilot. In France, the brand has over 15,000 reviews with a similar rating.

Most common positive feedback:

• "The best mattress I've ever slept on, perfect support without being too hard"
• "I no longer feel my partner's movements, the isolation is incredible"
• "Cool mattress even in the height of summer, no more sweaty nights"
• "200-night trial is hugely reassuring when ordering"
• "Premium quality, you can tell it's a well-designed product"

Most common negative feedback:

• "High price, it's an investment even if it's worth it"
• "The hybrid feel surprised me at first, it takes a few nights to get used to"
• "Firmer than I expected from reading the reviews"
• "Customer service can be slow during promotion periods"

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Which Sleeper Profile?

The Simba Hybrid is right for you if...

You want the best hybrid mattress on the market: The 5th-generation Aerocoil technology is the most advanced in the segment. If technical performance is your #1 criterion, Simba is the logical choice.

You get hot at night: The Hybrid's temperature regulation is one of the best on the market thanks to the micro-springs + open-cell foam combination. For hot sleepers, it's a decisive argument.

You sleep as a couple: The motion isolation of Aerocoil micro-springs is excellent. The 2500 springs per m² considerably reduce movement propagation from one side of the bed to the other.

You suffer from back pain: The medium-firm firmness and targeted support of the micro-springs keep the spine in a neutral position. Many users report a significant reduction in back pain.

You have a budget between €650 and €750: At €699 in 160x200, the Hybrid is positioned in the premium range but justifies its price through the embedded technology and 200-night trial.

The Simba Hybrid is less suitable if...

• Your budget is under €500 (look at the Emma Original at €449 or the Hypnia Supreme Memory at €299 instead)
• You prefer very plush and enveloping comfort (the Hybrid's medium-firm feel may disappoint)
• You've never slept on a spring mattress and are wary of the hybrid feel
• You're looking for a mattress made in France (Tediber is the right choice)
• You want a removable cover (the Hybrid has a fixed cover)

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Brand Strengths / Weaknesses

Strengths

1. Cutting-edge Aerocoil technology: 2500 pocketed micro-springs per m² in titanium steel, 5th generation in 2026
2. Record 200-night trial: The most generous trial period on the market, an absolute mark of confidence
3. Superior temperature regulation: Open-cell foam + micro-springs combination for natural coolness
4. Complete certifications: SGS and OEKO-TEX Standard 100 on all materials
5. European hybrid leader: Over one million mattresses sold, maximum brand awareness in the segment

Weaknesses

1. Premium price: €699 in 160x200, the most expensive in our selection alongside the Morphea Jade
2. Medium-firm firmness: May be too firm for fans of plush comfort or very light sleepers
3. Unsettling hybrid feel: The spring bounce can surprise those who have only known foam
4. Non-removable cover: Unlike Tediber or Hypnia, the cover cannot be machine-washed
5. Substantial weight: 27 kg in 160x200, two-person installation recommended

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Alternative Brands

Brand	Price 160x200	Technology	Strengths
Emma	€449	Memory foam	Best value for money, European leader
Tediber	€559	HR foam	Made in France, local manufacturing, hotel finishes
Hypnia	€299-599	Memory foam	Lowest prices on the market, varied range
Morphea France	€649	Hybrid springs + foam	Affordable hybrid, 7 ergonomic zones
Casper	~€599	Hybrid foam	Recognised American brand, clean design

In summary: If Simba dominates in hybrid technology and the record trial period, Emma offers better value for money, Tediber focuses on made in France, and Hypnia remains unbeatable on low prices. Morphea offers a more economical hybrid alternative.

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Verdict

In 2026, Simba remains our preferred choice for hybrid mattresses. With an adjusted price of €699, the Simba Hybrid now delivers a highly convincing premium value proposition. If you're looking for a technologically advanced mattress, with the best trial on the market (200 nights) and significantly improved temperature regulation, it's a smart long-term investment.

Brand rating: 8.8/10

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See also

• 🏆 Best mattresses 2026 comparison
• 🦴 Best mattress for back pain
• 📏 Mattress size guide