🇬🇧 United Kingdom · Memory foam vs Hybrid (foam & springs)

Ergoflex 5GvsSimba Hybrid

Which one is best for you? Ergoflex 5G vs Simba Hybrid - 2026 comparison by Vs Mattress

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Ergoflex 5GUp To 50% OffSimba HybridSale: Up To 55% Off
Ergoflex 5G logoErgoflex 5G

Ergoflex 5G

by Ergoflex · Memory foam

Up To 50% Off

10 · 30-night trial

Top pickSimba Hybrid logoSimba Hybrid

Simba Hybrid

by Simba · Hybrid (foam & springs)

Sale: Up To 55% Off

10 · 365-night trial

Pricing by size

Ergoflex 5G

Single£770
Double£966
King£1,055
Super King£1,175

Simba Hybrid

Single£799
Double£1,079
King£1,249
Super King£1,399

Essential information

Ergoflex 5GSimba Hybrid
TypeMemory foamHybrid (foam & springs)
Launched20062015
BrandErgoflexSimba
Made in–United Kingdom
Unique points

One of the oldest mattress in a box brands in the UK, the Ergoflex 5G comprises of:

  • 9cm of genuine High Density Visco Elastic Memory Foam
  • A unique Cool-Sleep airflow system perfectly designed for the UK climate
  • A superior base layer for support and longevity of performance
  • All combined with our luxurious TENCEL® outer cover for unrivalled comfort.

The Simba Hybrid mattress is the most popular mattress in the Simba line, the five luxurious layers help you get the quality of sleep you've been dreaming of:

  • Simbatex® foam (Density: 60 kg/m³)
  • 2,500 Conical Pocket Springs (25mm conical spring enclosed in a 100% polyester pocket)
  • High definition foam with edge support (Density: 50 kg/m³)
  • Zoned support base (Density: 33 kg/m³).
VideoThe Ergoflex® 5G MattressThe Simba Hybrid® Mattress - The Average Person Spends 26 Years and 3 Months In Bed

Certifications & trial

Ergoflex 5GSimba Hybrid
OEKO-TEX®YesYes
CertiPUR-US®YesYes
CertificationsCertiPur-US®, OEKO-TEX®CertiPur-US®, B Corp™ , OEKO-TEX®
Other certification info–Pro-Planet, Carbon Neutral Delivery
Sleep trial30 nights365 nights
Warranty1010
Free shippingFREEFREE
Free returnsYESYES
Pay laterYesYes
Delivery info

For the vast majority of customers we offer next-day delivery completely free of charge. If your required item is in stock, we can usually deliver within 24 hours from the point that you placed your order. (If ordered Monday to Thursday before 14:00)

Simba offers FREE carbon neutral standard delivery with a two-person delivery crew. Simba can also take away your old mattress for recycling once you have your new one. Delivery usually be within 3 business days if you order before 2pm, and within 4 business days after 2pm.

Firmness & feel

Ergoflex 5GSimba Hybrid
One firmness fits allYesYes
Select your firmnessNoNo
Adjustable firmnessNoNo
Half and half firmnessNoNo
Flippable / reversibleNoNo
Firmness info

The Ergoflex 5G mattress was meticulously developed to provide an optimum level of support and find that it performs for the vast majority of people, regardless of body type and sleeping style. This one "perfect" mattress, rated medium-firm uses the highest-quality materials available.

The Simba Hybrid is a medium-firm mattress. 95% of Simba sleepers love their mattress. If it doesn't work for you, Simba mattresses that are returned are either refurbished or recycled; they never go near a landfill site.

Construction & materials

Ergoflex 5GSimba Hybrid
Layers9cm of genuine High Density Visco Elastic Memory Foam, A unique Cool-Sleep airflow system perfectly designed for the UK climate, A superior base layer for support and longevity of performance, All combined with our luxurious TENCEL® outer cover for unrivalled comfort.Simbatex® foam, Conical Pocket Springs, High definition foam with edge support, Zoned support base
CoverOur TENCEL® outer cover provides a luxurious, natural and breathable surface which can be removed and machine washed whenever you wish. This combined with our premium foam means that you can be sure of a comfortable sleep night after night.A 500gsm hypoallergenic sleep surface that provides freshness and temperature control.
Machine-washable coverYesYes
Ergonomic handlesNoYes
ComfortErgoflex comparable only to TEMPUR® is technically more advanced and superior in performance to every alternative both in this price range and beyond. As a result it is renowned for delivering deep restorative sleep. It is recommended by Practioners for those that suffer from back pain, fibromyalgia, circulation problems and joint complaints or to those simply in need of a good night's sleep. The Ergoflex 5G consists of an unrivalled 9cms of open-cell 85kg/m³ high-density memory foam. Our unique Cool-Sleep airflow system encourages air to freely circulate thorough the mattress keeping you cool while you sleep. Our base layer provides perfectly weighted support for the upper layers and longevity of mattress performance.We've created a mattress engineered for optimal sleep. Our engineered support base, along with our unique combination of conical pocket springs and memory foam, allows two people with different sleeping patterns and body types to enjoy the perfect night's sleep - without being interrupted by each other. We've developed a super comfort layer of what we like to call 'Simbatex' to give cool, gentle support.
SupportOur mattress is the only true high density memory foam mattress available. Designed to mould itself to the contours of your body it provides instant comfort, more support and better sleep. This confidence is matched by our customers making repeat purchases for additional mattresses time and time again. Our class-leading zero disturbance technology has been a distinctive feature for over 10 years. Promoting deeper, more restful sleep it reduces the likelihood of being woken by a restless sleeping partner. Indeed our ten-year guarantee is underpinned with confidence of a decade of success. Unlike other brands we know our mattresses stand up to our warranty claims - as we have done it in real life for over a decade.The Visco memory foam moulds expertly to your body shape. It's like a mattress tailor made for you. Our perfectly engineered support base has different zones to ensure a perfect night's sleep for all. Our mattress features up to 2,500 unique conical pocket springs. They individually adjust as you sleep, so you wake up with a spring in your step for the whole day.
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Size & weight

Ergoflex 5GSimba Hybrid
Available sizesSingle, Double, KingSingle, Double, King, Super King
DimensionsSingle depth: 23 cmSingle depth: 25 cm
Single weight (kg)2424
Double weight (kg)3734
King weight (kg)4038
Super King weight (kg)–45

FAQs

Ergoflex 5G

Is Ergoflex a firm mattress?

Yes, the Ergoflex mattress is known for its medium-firm feel, achieved through the use of dense foams. It is specifically designed to provide a supportive and comfortable sleeping surface. The dense foams used in the Ergoflex mattress contribute to its firmness level, offering solid support and aiding in proper spinal alignment. The medium-firm firmness of the Ergoflex mattress strikes a balance between comfort and support, making it suitable for individuals who prefer a slightly firmer feel while sleeping. It's important to keep in mind that firmness preferences can vary among individuals, so personal comfort levels may differ.

What is the weight limit for the Ergoflex mattress?

The weight limit for the Ergoflex mattress is recommended to be up to 18 stones in weight for an individual (approximately 114 kg or 252 lbs) or 30 stones for combined weight (approximately 190 kg or 420 lbs). This recommendation ensures the ongoing maximum performance of the mattress and its longevity of use. It is advised to adhere to these weight limits as a precaution to ensure optimal comfort and support while using the Ergoflex mattress.

How long does the Ergoflex mattress last?

The Ergoflex mattress is built to be durable and long-lasting, thanks to its high-quality materials. Ergoflex provides a 10-year guarantee, which has been tested and proven with real customers since 2006. Many customer reviews confirm the mattress's longevity, with users expressing satisfaction after using their Ergoflex mattresses for several years. It's important to remember that the lifespan of a mattress can vary depending on factors like usage, care, and personal preferences.

Simba Hybrid

What firmness is Simba hybrid?

The Simba Hybrid mattress is described as medium-firm by the company, but it may feel slightly softer to some users. This sensation of sinking into the mattress is mainly due to the memory foam layer, which contours to your body. Despite this, the design ensures you won't feel "trapped" in the top layers. On the firmness scale, this mattress has been rated as 6 out of 10, which means it's on the slightly firmer side of medium, yet still offers a certain level of softness for comfort.

Is Simba good for side sleepers?

Yes, the Simba mattress can be a good choice for side sleepers. The cushioning effect of the memory foam upper layer provides excellent support for pressure points, which is particularly beneficial for side sleepers who need more support in areas like the shoulders and hips. In addition, the hybrid design includes 2500 springs, contributing to a good level of bounce, further enhancing comfort and support.

Do Simba mattresses last?

Yes, Simba mattresses are typically designed to last. Like most hybrid mattresses, Simba mattresses should have a lifespan of around 7 to 10 years (if not longer), depending on the level of care and usage. Given this, it may be worthwhile to consider investing a bit more in a high-quality mattress like Simba for long-term comfort and durability.

Wrap up

Thank you for checking out this Ergoflex 5G vs Simba Hybrid mattress comparison. We have tried to compare all the necessary information to help you choose which mattress is the most suitable for you.

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