A FusionFlex mattress is built around advanced cooling foam technology, designed to help you sleep cooler and wake up feeling more rested. Every model starts with FusionFlex Foam, an open-cell comfort layer engineered for airflow and pressure relief, with our Hybrid model adding individually responsive pocket springs for extra bounce and reduced motion transfer. Every FusionFlex mattress comes with a 10 year guarantee and a 200 night sleep trial, backed by Land of Beds' 50+ years of experience helping people choose the right mattress.
Browse our FusionFlex mattresses below, or read on for help choosing the right size, feel, and budget. Our team is available seven days a week for a personal recommendation.
A new mattress is a big decision, more so when it's built around technology you haven't tried before. FusionFlex was built to tackle a problem most people don't realise their mattress is causing: overheating during the night. We tested the range ourselves before stocking it, and our team can talk you through exactly how it feels compared with a traditional memory foam or pocket sprung mattress. Whichever FusionFlex model you're considering, we're here to help you get the fit right the first time.
Three things determine whether a FusionFlex mattress is right for you.
| Factor | Why It Matters | What to Check |
|---|---|---|
| Size | Your mattress must match your bed frame or divan base exactly, and suit the amount of room space you have | Your current bed frame or divan size, and clearance for turning or changing bedding |
| Construction | FusionFlex and FusionFlex Hybrid feel different underneath. Pocket springs add extra bounce and support, while an all-foam build gives a closer, quieter feel | Whether you prefer a springier feel or a contouring foam feel, and whether you share the bed with a partner |
| How hot you sleep | FusionFlex is designed around cooling performance, but how much difference you notice depends on how warm you typically sleep | Your usual sleep temperature, and whether you already use cooling bedding or a fan |
Not sure where to start? Speak to our team or use the quick decision guide further down this page.
FusionFlex mattresses are available in Single, Double, King Size, and Super King. Your mattress size must match your bed frame or divan base exactly.
| Size | Dimensions | Best For |
|---|---|---|
| Single (3ft) | 90 x 190cm | Children, teens, solo sleepers, guest rooms |
| Double (4ft 6) | 135 x 190cm | Couples in smaller bedrooms, guest rooms |
| King Size (5ft) | 150 x 200cm | Couples wanting more width and length |
| Super King (6ft) | 180 x 200cm | Maximum comfort, larger bedrooms |
See our UK Bed Sizes: Home Measuring Guide for room-by-room measuring advice.
Every FusionFlex mattress is built from a combination of purpose-engineered layers, rather than a single block of foam. Here's what each layer does.
| Technology | What It Does | Best For |
|---|---|---|
| FusionFlex Foam | An open-cell comfort layer engineered for airflow and pressure relief, moving heat away from your body instead of trapping it | Sleepers who want a cooler, more responsive feel than standard memory foam |
| FlexCore Pocket Springs | Individually responsive springs that adapt to your body and reduce motion transfer between partners | Couples, and sleepers who want some bounce alongside the foam comfort layers |
| FlexZone Foam | A zoned support layer that varies support across the body for more balanced spinal alignment | Sleepers who want more targeted support without moving to a firmer mattress |
| FusionBase Foam | A high-density foundation layer that keeps the mattress stable and holding its shape over time | Anyone who wants the mattress to perform consistently for years, not just when it's new |
The current FusionFlex Hybrid combines FusionFlex Foam comfort layers with FlexCore Pocket Springs for extra bounce and reduced motion transfer. An all-foam FusionFlex model, without the spring layer, is joining the range soon for anyone who prefers a quieter, closer-contouring feel.
In the showroom, customers who've previously found memory foam "too hot" or "too slow to move on" are usually the ones who notice the FusionFlex difference first.
Not sure whether FusionFlex is different enough from a standard memory foam mattress to matter? Here's a plain comparison.
| FusionFlex | Traditional Memory Foam | |
|---|---|---|
| Airflow and cooling | Open-cell construction designed to move heat away from the body | Denser cell structure that can trap heat, especially in warmer rooms |
| Feel | Responsive comfort that adapts quickly to movement | Slower to respond, with a closer "hugging" feel |
| Motion transfer | Reduced on Hybrid models thanks to individually responsive pocket springs | No springs, so motion is absorbed by the foam alone |
| Best for | Sleepers who run hot or want a fresher-feeling foam mattress | Sleepers who prioritise close body contouring over cooling |
Neither is objectively better. It depends on whether cooling performance or classic foam contouring matters more to you.
Mike Murray, Land of Beds CEO: "We get customers in the showroom every week who tell us they wake up too hot, and it's usually the mattress. FusionFlex was built to solve that specific problem, not just to put a cooling label on another mattress."
Inclusion varies by model. As a general guide across the range.
| Item | Typically Included? |
|---|---|
| Mattress | Yes - always |
| Old mattress removal | Yes - available as an add-on |
Always check the individual product listing for full details on what's included before purchasing. This varies between products.
| What We Offer | Why It Matters to You |
|---|---|
| 50+ years of bed and mattress expertise | Advice you can trust, not a scripted sales pitch |
| 10 year guarantee and 200 night sleep trial | Long-term peace of mind, plus real time to decide if FusionFlex is right for you |
| Free UK delivery on orders over £100 | No delivery charge on the vast majority of orders |
| Price Promise Guarantee | We'll match any like-for-like price you find elsewhere |
| Interest-free finance on selected terms | Spread the cost without paying more overall |
| Expert advice, 7 days a week | Real people via phone, chat, or in-store, no scripts |
| Family-run, independent retailer | We recommend what's right for you, not what's easiest for us |
| 10,000+ verified Trustpilot reviews | Real feedback from real customers across thousands of orders |
Not sure whether FusionFlex Hybrid is right for you? Our team can talk you through the technology, no pressure to buy. Chat online, call us, or visit our showrooms in Cheshire and Greater Manchester. We're open seven days a week.
| How to Reach Us | What to Expect |
|---|---|
| Live chat | Fast responses for quick questions. Available during opening hours. |
| Phone (01928 242829) | Speak directly with a bed and mattress expert. Best for detailed advice. |
| In-store (Cheshire / Greater Manchester) | Try FusionFlex in person before you buy. |
| Help Centre | Buying guides, size guides, and FAQs available 24/7. |
| Question | Answer |
|---|---|
| What is a FusionFlex mattress? | FusionFlex is a cooling mattress technology available at Land of Beds. Every model uses FusionFlex Foam, an open-cell comfort layer engineered for airflow and pressure relief, so heat moves away from your body instead of building up overnight. |
| What's the difference between FusionFlex and FusionFlex Hybrid? | The Hybrid model adds individually responsive pocket springs beneath the foam layers, giving extra bounce and reduced motion transfer if you share the bed. An all-foam model is joining the range soon for a quieter, more contouring feel. |
| Does FusionFlex actually sleep cooler than a normal memory foam mattress? | FusionFlex Foam uses an open-cell structure specifically engineered for airflow, which moves heat away from the body faster than a dense, closed-cell memory foam. It won't feel cold to the touch, but it's designed to stop heat building up overnight the way some memory foam mattresses can. |
| What size FusionFlex mattress should I choose? | Your mattress size must match your bed frame or divan base exactly. Double is the most common choice for main bedrooms; king size suits couples wanting extra width. FusionFlex is available in Single, Double, King Size, and Super King. |
| Does a FusionFlex mattress come with a cover? | Yes, every FusionFlex mattress comes with a cover included. |
| Do you offer free delivery on FusionFlex mattresses? | Yes, on orders over £100. Some further-out postcodes may incur a charge. See our delivery information for full details. |
| Can I buy a FusionFlex mattress on finance? | Yes. Interest-free finance is available on selected terms. See our finance page for eligibility and how to apply. |
| What guarantee comes with a FusionFlex mattress? | Every FusionFlex mattress comes with a 10 year guarantee. |
| Is there a sleep trial with FusionFlex? | Yes. FusionFlex comes with a 200 night sleep trial. |
| Can I get my old mattress removed when I buy a FusionFlex mattress? | Yes, old mattress removal is available as an add-on. |
