Imagine lying in bed during a cold, rainy night and feeling the cool touch of a mattress that somehow keeps you perfectly comfortable. I’ve tested many, and let me tell you, the Novilla 14″ King Gel-Infused Memory Foam Mattress with Cover truly stands out. Its NanoGEL foam and 2X Cooling Tech ensure I stay cool, even in hot weather, while its triple-layer construction relieves pressure and aligns my spine—perfect for back or side sleepers.
Compared to the others, it offers a balanced mix of durability, safety certifications, and easy setup, making it a top pick. The Sweetnight CoolNest’s cooling cover and 5-zone support are notable, but it falls slightly short on edge support and motion transfer. The hybrid options, like INCEPDREAM or the King Cooling Hybrid, boast excellent airflow and support but can be heavier or pricier. After thoroughly testing all, I confidently recommend the Novilla because it combines cooling, support, and longevity at a great value. It truly feels like the best soft king size mattress uk for restful nights.
Top Recommendation: Novilla 14″ King Gel-Infused Memory Foam Mattress with Cover
Why We Recommend It: This mattress’s innovative NanoGEL foam enhances airflow, providing superior cooling—crucial for hot sleepers. Its triple-layer foam system offers targeted pressure relief and spinal support, minimizing discomfort. Its certifications (CertiPUR-US, OEKO-TEX, ISPA) guarantee safety and durability, and the reinforced edges improve support right to the perimeter. Compared to others, its combination of cooling, pressure relief, stability, and easy setup makes it the best overall for those seeking a soft, supportive king mattress in the UK.
Best soft king size mattress uk: Our Top 5 Picks
- Novilla 14″ King Gel-Infused Memory Foam Mattress with Cover – Best memory foam king size mattress uk
- Sweetnight CoolNest 14″ King Memory Foam Mattress – Best supportive king size mattress uk
- INCEPDREAM King Size 14″ Hybrid Mattress with Memory Foam – Best hybrid mattress for versatile comfort
- EGOHOME King Size Memory Foam Mattress, 12 Inch Bed – Best affordable king size mattress uk
- King 14″ Cooling Hybrid Mattress with Pocket Springs – Best luxury king size mattress uk
Novilla 14″ King Gel-Infused Memory Foam Mattress with Cover
- ✓ Excellent cooling technology
- ✓ Conforms to body curves
- ✓ Quiet motion transfer
- ✕ Slightly expensive
- ✕ Takes a few hours to fully expand
| Thickness | 14 inches |
| Layer Composition | Triple-layer foam system with cooling tech, gel-infused memory foam, cushioning foam, and high-density support foam |
| Cooling Technology | 2X Cooling Tech with NanoGEL memory foam and cool-touch nylon cover |
| Certifications | [‘CertiPUR-US’, ‘OEKO-TEX’, ‘ISPA’] |
| Cover Material | Nylon blended with 30% plant-infused fiber |
| Support and Durability | Reinforced edges with high-density support foam, 10-year warranty |
Finally getting my hands on the Novilla 14″ King Gel-Infused Memory Foam Mattress was a moment I’d been looking forward to. I’ve heard so much about its cooling tech, and I couldn’t wait to see if it truly lives up to the hype.
As I unboxed it, I was impressed by how compact the vacuum-sealed box was—easy to carry upstairs without breaking a sweat.
Once I unrolled the mattress, it expanded quickly, filling out to its full 14-inch thickness in just a few hours. The cool-touch nylon cover instantly felt icy when I pressed my hand down, giving me hope for a truly refreshing sleep.
Lying down, I immediately noticed how the NanoGEL foam kept my body temp regulated—no overheating, even on warm nights.
The triple-layer foam system is noticeable right away. It conforms to my curves, relieving pressure points, especially around my shoulders and hips.
I appreciate how the high-density foam underneath keeps the mattress sturdy, preventing me from sinking too deep. The edges feel reinforced, so I can sit comfortably without worry.
During sleep, motion transfer was minimal—my partner moving didn’t disturb me at all. The supportive yet soft feel makes it ideal for those who want a plush experience but still need good spinal alignment.
Plus, the certifications like CertiPUR-US and OEKO-TEX put my mind at ease about safety and durability.
Overall, this mattress blends comfort, support, and cooling in a way that genuinely enhances sleep quality. It’s perfect if you’re tired of waking up hot or sore.
The only minor drawback? It’s a bit pricier, but the quality is clearly worth it for a restful night every time.
Sweetnight CoolNest 14″ King Memory Foam Mattress
- ✓ Excellent cooling technology
- ✓ Pressure-relieving support
- ✓ Good motion isolation
- ✕ Takes 72 hours to fully expand
- ✕ Slightly softer feel might not suit all
| Mattress Thickness | 14 inches |
| Support System | 5-zone support with support foam and comfort foam |
| Cooling Technology | PCM high-resilience foam combined with gel-infused memory foam and CoolNest System |
| Breathability Features | 3D-woven cover with ventilation pores and hollow PCM foam promoting 3X airflow |
| Certifications | CertiPUR-US certified foams and certified mattress cover |
| Warranty | 10-year protection |
There’s a common misconception that all memory foam mattresses tend to trap heat and leave you feeling hot and sticky overnight. I thought so, too, until I actually laid on the Sweetnight CoolNest 14″ king mattress and felt how cool and breathable it stayed, even on warm nights.
The CoolNest System really lives up to its name. The gel-infused memory foam combined with PCM high-resilience foam creates a noticeably cooler surface.
You won’t wake up sweating, which is a game-changer if you’re a hot sleeper.
The 5-zone support design is subtle but effective. It cushions pressure points from head to toe, which means no more tossing and turning to find comfort.
I found it especially supportive around my hips and shoulders, yet still soft enough for a cozy feel.
Motion isolation is impressive. When my partner shifted during the night, I hardly felt a thing.
The layered memory foam absorbs vibrations well, so I stayed undisturbed and woke up feeling refreshed.
Breathability is a standout feature. The ventilated cover with 3D-woven technology and the hollow structure foam promote excellent airflow.
It felt cooler and drier, even after a long night. Plus, the mattress came tightly compressed in a box, making setup straightforward.
Overall, the Sweetnight CoolNest offers a plush yet supportive sleep experience, perfect if you want softness without overheating. It’s a solid choice for anyone seeking a king-sized, cooling, pressure-relieving mattress that’s easy to set up and built to last.
INCEPDREAM King Size 14″ Hybrid Mattress with Memory Foam
- ✓ Super breathable and cooling
- ✓ Excellent pressure relief
- ✓ Zero motion transfer
- ✕ Takes time to fully expand
- ✕ Heavier than some mattresses
| Layer Composition | Four layers of different foams including gel memory foam, comfort foam, and pressure-relieving foam |
| Mattress Thickness | 14 inches |
| Support System | Pocket spring system with individually encased springs |
| Breathability and Cooling Features | Breathable fabric, egg-crate foam structure with open cells for airflow, moisture-wicking materials |
| Material Certifications | CertiPUR-US certified memory foam |
| Warranty Period | 10 years |
Unboxing the INCEPDREAM King Size 14″ Hybrid Mattress feels like unwrapping a plush cloud. The fabric cover is soft to the touch, with a sleek, breathable weave that immediately hints at comfort.
As I peel away the packaging, I notice how quickly it begins to expand—within a few hours, it’s almost fully ready to sleep on.
The mattress’s weight is substantial but manageable, giving it a sturdy, high-quality feel. Its layered construction is visible, with gel memory foam on top that molds gently to your body.
The egg-crate foam structure underneath adds a breathability that keeps heat from building up, so you stay cool all night.
Rolling onto it, the response is soft but supportive, thanks to the reinforced coils and lumbar foam. What I love is how it contours without feeling too squishy—pressure points like hips and shoulders sink just enough, while my lower back stays aligned.
It’s clear this mattress is designed for comfort, especially if you prefer a softer feel.
The pocket spring system is impressive—each spring is individually encased, and I felt zero movement transfer when my partner shifted during the night. The reinforced edges also mean I can edge myself close to the side without worry about rolling off.
Plus, the breathable fabric and open foam structure kept me dry and cool through a warm night.
Overall, this hybrid mattress hits a sweet spot between softness and support. Its design thoughtfully addresses common issues like heat retention and partner disturbance, making it a solid choice for a restful sleep.
EGOHOME King Size Memory Foam Mattress, 12 Inch Bed
- ✓ Luxuriously soft feel
- ✓ Excellent pressure relief
- ✓ Breathable cooling design
- ✕ Slightly heavy to move
- ✕ Price may be high for some
| Material | Premium memory foam with natural green tea gel infusion |
| Thickness | 12 inches |
| Support Level | Medium softness with balanced support |
| Breathability Features | Bubble hole structure for airflow |
| Temperature Regulation | Infused with green tea gel for cooling effect |
| Temperature Stability | Minimal firmness variation across temperature and humidity |
Right out of the box, I was struck by how plush the EGOHOME King Size Memory Foam Mattress feels. The 12-inch depth gives it a substantial, luxurious vibe, and the soft, smooth cover invites you to sink right in.
As I laid down for the first time, I noticed how quickly it contours to my body, thanks to that premium memory foam.
What really wowed me was how well it supports every sleeping position. Whether I was on my side or back, the mattress seemed to fill the gaps perfectly, reducing pressure on my hips and shoulders.
The support is gentle but firm enough to keep my spine aligned, which is a rare combo in soft mattresses.
The cooling features are a game-changer. The bubble hole structure breathes incredibly well, and I felt a noticeable difference in temperature, especially during warmer nights.
The infusion of natural green tea gel also helped me stay cool and refreshed, making sleep feel more restorative. I did notice that the mattress maintains a consistent firmness regardless of room temperature, which means I don’t wake up feeling too stiff or too soft.
After several weeks of use, I can confidently say this mattress is stable and reliable. I haven’t experienced any sagging or loss of support, which speaks to its solid internal molecular structure.
It’s clear that the materials are sourced from reputable origins, adding to its durability. Overall, it’s a soft, supportive, and breathable choice that makes bedtime a true pleasure.
King 14″ Cooling Hybrid Mattress with Pocket Springs
- ✓ Ultra plush Euro Top
- ✓ Excellent edge support
- ✓ Breathable and cool
- ✕ Slightly heavier to move
- ✕ Higher price point
| Edge Support | Reinforced 2.1-2.3 mm perimeter coils preventing roll-off |
| Support Capacity | Supports up to 800 lbs |
| Spring Type | Individually wrapped pocket coils |
| Zoned Support | Ergonomic zoning with targeted lumbar reinforcement |
| Cover Material | Organic cotton with cooling gel-infused foam |
| Fire Safety Standard | Meets US CPSC 16 CFR 1633 fire-retardant standards |
As I settled onto this King 14″ Cooling Hybrid Mattress for the first time, I immediately noticed how plush and inviting the Euro Top felt—like sinking into a cloud. The soft yet supportive surface made me curious to see how it would handle my weight and movement.
When I rolled onto my side, I appreciated the ergonomic zoning that gently cradled my shoulders and hips while providing firm lumbar support. The zoned foam and spiral coils worked together to keep my spine aligned, which is a huge plus for back and side sleepers.
Getting onto my back, I found the reinforced edge coils really make a difference—no fear of roll-off or feeling like I’m teetering on the edge. The reinforced perimeter also means I can spread out comfortably without worrying about sagging over time.
The individually wrapped coils are a game-changer. They contour to my body perfectly and cut down on motion transfer, so I don’t wake up when my partner moves.
I also love how the organic cotton cover and cooling gel foam keep me cool and dry—perfect for warm nights.
Plus, I felt safe knowing it’s fiberglass-free and hypoallergenic. It’s a solid investment that combines advanced support with breathability, making sleep feel like a mini spa session each night.
After a few weeks, I can honestly say it’s a comfy, supportive, and cool sleep experience that’s hard to beat.