Emma Hybrid Mattress vs Simba Green Hybrid Mattress – Which Should You Buy?
Choosing the right mattress is one of the most important decisions for your long-term comfort and health. The Emma Hybrid Mattress and the Simba Green Hybrid Mattress are two of the most popular mattresses in the UK. Both use a blend of foam and springs to aim for supreme comfort, but they differ in feel, sustainability, cooling, and price. If you are considering either, this comprehensive comparison will help you find which mattress is the perfect fit for your sleep needs and budget.
Introducing the Brands: Emma and Simba
Emma is one of the UK’s top selling mattress brands. Emerging as a disruptor, Emma has won many awards for its original memory foam and hybrid designs. The Emma Hybrid in particular is known for its balanced, supportive, and pressure-relieving feel, and is a popular choice for both singles and couples seeking pressure relief and spinal alignment.
Simba began as a tech-driven, sleep-specialist British company. Simba’s focus on innovation, breathability, and more eco-friendly construction has gained them a dedicated following. The Simba Green Hybrid Mattress places sustainability at its heart, using recycled and natural materials alongside responsive spring technology.
Both brands ship their mattresses directly to your UK home, compressed in a box for easy set-up. But choosing between their hybrids is not always straightforward. Let’s explore how each one performs in key areas sufferers care about: comfort, materials, cooling, support, motion isolation, edge sturdiness, environmental credentials, trial, warranty, and price.
Mattress Design: Layers and Construction
Emma Hybrid Mattress Construction
The Emma Hybrid Mattress features four key layers:
- Breathable Top Cover: Wicks moisture and adds softness.
- Airgocell® Foam: Emma’s signature open-pored foam for bounce and temperature regulation.
- Memory Foam Layer: Adds pressure relief and body contouring.
- Encased Pocket Springs: Springs for targeted support and responsiveness.
- Supportive HRX Foam Base: Ensures long-lasting mattress structure and durability.
This combination aims to blend the comfort of foam with the stability and airflow of springs, all in a mattress about 25cm thick.
Simba Green Hybrid Mattress Construction
The Simba Green Hybrid mattress takes a sustainable approach with its materials:
- Natural Top Cover: Made with sustainable bamboo/wool blend for softness, moisture control, and temperature management.
- Aerocoil® Micro Springs: Thousands of mini springs for point-by-point support and improved airflow.
- CoreMax™ Zoned Pocket Springs: A 7-zone spring system to support your body’s natural curves.
- EcoFoam Layer: Simba’s foam, engineered from partly recycled content and designed to be more breathable than memory foam.
- Recycled/Plant-Based Support Core: Underpins the mattress and stays resilient for years.
Simba’s eco focus extends to their packaging and production processes, with an 100% recyclable delivery box and carbon-neutral commitment.
Comfort, Firmness and Feel
How a mattress feels is subjective, influenced by your body shape, sleeping style, and comfort preference. But each mattress brand aims for mass appeal, typically described as medium-firm.
The Emma Hybrid Comfort
The Emma Hybrid is regarded as medium-firm (around 6.5/10 on the firm scale). The top foam layers feel soft and yielding at first, gently hugging hips and shoulders. The springs under the foam give bounce and support, so you won’t sink too deep or feel stuck. The result is a balanced, universal feel the brand says suits most UK sleepers, particularly back and side sleepers.
If you want a mattress that can relieve pressure at the shoulders and hips, while maintaining healthy spinal alignment, the Emma Hybrid is designed for you. Heavier users may find it a touch soft and might prefer the Emma Premium or a firmer model. For petite or average individuals, it should feel just right.
The Simba Green Hybrid Comfort
The Simba Green Hybrid is also medium-firm, arguably a notch firmer and more responsive than the Emma. The natural top layer gives a gentle cushion, while the Aerocoil® micro springs and 7-zoned support system rapidly adjust to your body’s movements. This means you get less ‘hug’ and more dynamic push-back than with deep memory foam beds.
It’s a great match for sleepers who dislike the ‘sinking’ feel of memory foam or tend to overheat at night. Front and back sleepers may especially like this mattress for its stable feel, while side sleepers still get adequate sink at the major joints.
Pressure Relief and Support
Both mattresses are engineered for spinal alignment. The Emma Hybrid’s dynamic foam and spring combo adapts to movement and relieves pressure, especially for side sleepers prone to hip or shoulder discomfort.
The Simba Green Hybrid stands out for its 7-zoned support system. This means firmer springs under hips and ‘give’ under the shoulders, encouraging a healthier sleeping posture, especially for those who toss and turn.
If back pain is a recurring issue, you may also want to see our guide to top mattresses for back pain in the UK.
Breathability and Cooling
Overheating is one of the most common complaints with foam mattresses. Both Emma and Simba’s hybrids aim to beat the heat with their unique approaches.
Emma uses aerated Airgocell® foam and pocket springs, with a moisture-wicking cover for improved airflow. It does a good job staying cool compared to all-foam beds, but may still feel warm for very hot sleepers.
Simba’s Green Hybrid really excels here. The natural, plant-based and bamboo fabrics wick away sweat, and the generous micro-coils offer channelled air circulation through the mattress core. If you struggle with night sweats or find foam too warm, Simba is likely the cooler option of the two.
See our guide to the best mattresses for hot sleepers in the UK for more alternatives.
Motion Isolation: Sharing the Bed
If you share your bed, how well does a mattress stop movement travelling across the surface? Both Emma and Simba perform well versus traditional spring beds, due to their hybrid design.
The Emma Hybrid’s memory foam absorbs energy, so much of your partner’s movement will be muted. Some bounce from the springs may transfer, but it’s minimal – much less than older coil beds.
Simba’s Green Hybrid, with its micro-coil layer, offers excellent isolation as well, all without the memory foam ‘sink’. You can enjoy the more springy feel without sacrificing peace and quiet.
This feature, sometimes called ‘zero partner disturbance’, is explored in more depth in our article on partner disturbance in modern mattresses.
Edge Support and Durable Construction
Edge support is crucial when getting in and out of bed, or if you tend to sleep right up to the side. Both mattresses feature perimeter foam encasement around their spring units. The Emma Hybrid has more to ‘give’ at the sides, which can feel less stable for some people when sitting or lying at the edge.
The Simba Green Hybrid, however, offers robust edge-to-edge support, thanks to firmer springs and a reinforced border. This makes the entire sleeping surface feel broader and more secure for sitting, tying shoelaces, or simply stretching out.
Eco-Friendliness and Sustainability
With growing concern about our planet, eco-friendly credentials are now a major selling point in the mattress industry.
Emma Hybrid Sustainability
Emma manufactures its mattresses in the UK, follows EU safety standards, and ships in recyclable packaging. However, the foams used are petroleum-based, and there’s limited recycled or plant-based content. Emma does hold CertiPUR and OEKO-TEX certifications for foam safety. But the Emma Hybrid is best considered low-to-moderate in eco scope.
Simba Green Hybrid Sustainability
The Simba Green Hybrid puts sustainability at its core. Its foam is part-recycled and plant-derived, while the cover features bamboo and wool – both highly renewable. All Simba mattresses are made in the UK, shipped in minimal, recyclable packaging, with the company aiming for carbon-neutral operations. For the eco-minded, Simba stands out as the greener choice.
Trial Period, Delivery and Warranty
Both Simba and Emma offer hassle-free online purchases, fast delivery (usually rolled and boxed within days), and risk-free trials.
- Emma: 200 night sleep trial, free delivery and collection, 10 year warranty.
- Simba: 200 night sleep trial, free delivery and collection, 10 year warranty.
If the mattress isn’t right after a real test in your bedroom, you’ll get a no-quibble collection and full refund from both brands.
For more on UK returns policies, see our comparison of mattress returns across retailers.
Budget and Value for Money
Pricing is always a key factor. The Emma Hybrid is typically more affordable, especially after frequent promotions and discounts. Expect to pay:
- Emma Hybrid Double: Often £500-£700 (offers can drop this lower)
- Simba Green Hybrid Double: Usually £850-£1,000
The main reason for the price gap is the cost of Simba’s sustainable materials and complex spring systems. Is it worth paying extra? For shoppers with a green outlook, night sweat problems, or those valuing edge support, the Simba is a strong contender. For value-oriented buyers who still want comfort and support, the Emma Hybrid has the edge.
If you’re exploring great mattresses at all budgets, see our best hybrid mattresses in the UK guide and our top picks under £500.
Who Will Benefit Most from Each Mattress?
Emma Hybrid Mattress
- UK shoppers looking for a top value mattress with good pressure relief and balanced support
- Side and back sleepers who enjoy a gentle cradle, but don’t want to feel stuck
- Anyone on a moderate budget wanting an award-winning, all-rounder hybrid
Simba Green Hybrid Mattress
- Sustainability-minded shoppers seeking eco-friendly choices
- Hot sleepers, those who sweat, or dislike memory foam’s hug
- People who want firmer edge support and a slightly more uplifting, ‘buoyant’ surface
Both mattresses suit the average UK sleeper and offer superior comfort compared to older spring or basic memory foam beds. Those who want the greenest credentials, best cooling, or strongest edges may wish to invest in the Simba Green. Price-driven shoppers after great comfort without the eco package may prefer the Emma.
Comparing Alternatives: Other Hybrid Choices in the UK
Both Emma and Simba feature in our head-to-head mattress comparison guides, where we challenge leading brands to rigorous real-world tests. If you’re not sure either is right for you, explore other top picks such as Hypnos, Millbrook, Otty, and more in our mattress review summary. For side-by-side hybrids, see our ultimate guide to hybrid mattresses.
Real User Feedback: What UK Sleepers Say
Emma Hybrid users highlight the excellent comfort for side and back sleepers, easy online experience, and substantial upgrade over traditional mattresses. Some heavier or stomach sleepers report it can feel a bit too soft over time.
Simba Green Hybrid customers are impressed by the eco-friendly feel, breathability, and exceptional build. Many value the sturdy edge support and cool night’s sleep. Some mention the price, but most believe the durability and green features justify the spend.
Mattress Care Tips to Prolong Your Investment
Hybrid mattresses are an investment. To keep yours performing at its best:
- Rotate every 3–6 months to even out wear
- Use a mattress protector for freshness (see our Emma Mattress Protector review)
- Avoid frequent jumping and rough handling
- Let your new mattress air out and expand fully before use (see our off-gassing guide)
Final Verdict: Emma Hybrid vs Simba Green Hybrid
Both mattresses are market leaders with plenty to recommend them, but your choice will come down to a few simple questions:
- If eco-friendliness, heat regulation, and strong edge support are top priorities, opt for the Simba Green Hybrid.
- If your budget is tighter but you still want supportive comfort and a reputable brand, choose the Emma Hybrid.
- Not sure? See how these and other brands compare in our detailed head-to-head mattress tests.
Whatever you choose, both Emma and Simba offer risk-free trials, so you can buy in confidence and test in your own home. Prioritise what matters most to your sleep. After all, better rest means a better quality of life.
Ready to find the best mattress for you? Browse our recommendations and shop now for a better night’s sleep.