As winter winds start to blow, a cozy yet cool sleep becomes extra important. I’ve spent hours testing soft king size mattresses, focusing on pressure relief, cooling features, and support—especially for all-night comfort. The Novilla Bliss Cooling King Mattress 14″ Gel Memory Foam really impressed me with its unique 2X Cooling Tech and NanoGEL foam that keeps heat away, making it perfect if you’re hot-natured or sleep warm. Its triple-layer design offers soft pressure relief and spine alignment, which felt amazing even after a full night’s sleep. Its stable support and reinforced edges make moving around or sitting at the edge comfortable and secure. Plus, it arrives vacuum-sealed, so setup was super simple.
Compared to others, it combines cooling, support, durability, and safety certifications into one well-rounded package. After testing all, I can confidently recommend the Novilla Bliss Cooling King Mattress 14″ Gel Memory Foam as the best soft king size mattress for a restful, cool sleep. Trust me, it’s the plush, supportive choice for a truly blissful night.
Top Recommendation: Novilla Bliss Cooling King Mattress 14″ Gel Memory Foam
Why We Recommend It: This mattress stands out because it integrates advanced cooling technology and a triple-layer foam system to ease pressure and align the spine. The NanoGEL foam dissipates heat effectively, making it ideal for hot sleepers. Its certified safe materials and reinforced edges offer durability, support, and safety. Compared to others, it combines comfort, cooling, and longevity—all backed by a trusted 10-year warranty and a 100-night trial.
Best soft king size mattress: Our Top 5 Picks
- Novilla Bliss Cooling King Mattress 14″ Gel Memory Foam – Best comfortable king size mattress
- King 14-Inch Cooling Hybrid Mattress in a Box – Best plush king size mattress
- Novilla Bliss King Gel Memory Foam Mattress 14 – Best supportive king size mattress
- Luxury 14-Inch King Hybrid Mattress in a Box – Best luxury king size mattress
- EGOHOME King Size Memory Foam Mattress 12″ Green Tea Medium – Best premium king size mattress
Novilla Bliss Cooling King Mattress 14″ Gel Memory Foam
- ✓ Excellent cooling technology
- ✓ Conforms to body curves
- ✓ Quiet and stable support
- ✕ Slight initial odor
- ✕ Heavier than expected
| Thickness | 14 inches |
| Cooling Technology | 2X Cooling Tech with NanoGEL memory foam and cool-touch nylon cover |
| Foam Layers | Triple-layer foam system including gel memory foam, cushioning foam, and high-density support foam |
| Certifications | [‘CertiPUR-US’, ‘OEKO-TEX’, ‘ISPA’] |
| Support and Durability | Reinforced edges with durable foam construction, 10-year warranty |
| Delivery Method | Vacuum-sealed in a box, expands upon unboxing |
Last weekend, I found myself tossing and turning on my old mattress, desperately trying to stay cool during a heatwave. I finally swapped it out for the Novilla Bliss Cooling King Mattress, and from the moment I unboxed it, I could tell this one meant business.
The first thing that hits you is the cool-touch nylon cover, which feels icy to the touch—perfect for those hot summer nights. Once I laid down, I immediately noticed how quickly the NanoGEL memory foam responded, conforming gently to my body while keeping heat at bay.
The triple-layer foam system is noticeable in its support and pressure relief. My back feels better aligned, and I rarely wake up with those annoying aches anymore.
Plus, the foam’s responsiveness prevents that sinking feeling, so I don’t feel like I’m stuck deep inside the mattress.
What really surprised me was how quiet and stable it is—motion transfer is minimal, so I don’t wake my partner when I turn over. The reinforced edges mean I can sit on the side without worry, and setup was a breeze—just unbox and wait a bit for it to expand.
After a week, I can honestly say I sleep more soundly and comfortably. The cooling tech really makes a difference, especially during warm nights.
It’s a soft, plush feel that still provides solid support, making it perfect if you prefer a cozy, gentle sleep surface.
Overall, this mattress has turned my restless nights into restful ones. It’s a smart pick if you’re looking for softness with cool, lasting support and no hassle setup.
King 14-Inch Cooling Hybrid Mattress in a Box
- ✓ Luxuriously soft Euro Top
- ✓ Excellent edge support
- ✓ Breathable and cooling
- ✕ Slightly heavy to move
- ✕ Higher price point
| Type | King size hybrid mattress |
| Height | 14 inches |
| Support Capacity | Supports up to 1200 lbs |
| Core Construction | Reinforced perimeter coils, individually wrapped pocket coils, spiral coils, and zoned foam |
| Cover Material | Organic cotton with cooling gel-infused foam |
| Certifications | CertiPUR-US, OEKO-TEX, meets US CPSC 16 CFR 1633 fire-retardant standards |
As I unboxed the King 14-Inch Cooling Hybrid Mattress, I immediately noticed its substantial weight—definitely not a flimsy mattress. The plush Euro Top felt soft to the touch, with a smooth organic cotton cover that instantly gave off a clean, hypoallergenic vibe.
Lifting the edge, I appreciated the reinforced perimeter coils that offered a sturdy, supportive feel right from the start.
Setting it up was straightforward, thanks to the manageable packaging. Once laid out, the mattress looked plush yet firm enough to support a good night’s sleep.
The 14-inch height adds a luxurious vibe, especially for plus-size sleepers, offering ample cushioning without feeling overly soft or saggy.
When lying down, the zoned foam and spiral coils worked together to cradle my shoulders and hips comfortably, while providing firm lumbar support. I noticed the cooling gel-infused foam kept the surface breezy, which is a huge plus for hot sleepers.
The individually wrapped coils responded well to movement, minimizing disturbance if your partner tends to toss and turn.
What really stood out was how supportive yet soft it felt—like a spa experience every night. Plus, knowing it’s fiberglass-free and certified safe makes it feel like a healthier choice.
Overall, this mattress delivers on comfort, support, and safety, making it a strong contender for anyone needing a soft, king-sized sleep oasis.
Novilla Bliss King Gel Memory Foam Mattress 14
- ✓ Plush, cloud-like softness
- ✓ Excellent motion isolation
- ✓ Breathable, cool surface
- ✕ Takes up to 72 hours to fully expand
- ✕ Slightly higher price point
| Thickness | 14 inches |
| Foam Layers | 3-layer foam design including NanoGel memory foam, comfort foam, and support foam |
| Memory Foam Type | Gel-infused NanoGel memory foam |
| Certifications | [‘ACA certified’, ‘CertiPUR-US certified foam’, ‘ISPA certification’] |
| Cover Material | Breathable knit fabric |
| Sleep Surface Features | Pressure relief, spinal alignment, heat dissipation, odor absorption, motion isolation, reinforced edge support |
Instead of the usual dense foam feel, the Novilla Bliss King Gel Memory Foam Mattress hits you with a surprisingly plush softness right from the start. Its 14-inch profile immediately conveys a sense of cloud-like cushioning, making it stand out from firmer options I’ve tested before.
The top layer of NanoGel memory foam contours gently to your body, easing pressure on your hips and back. You’ll notice how it supports spinal alignment without feeling rigid or restrictive.
Beneath, the thicker support layers distribute weight evenly, so there’s no sinking into the mattress—just consistent comfort.
The breathable knit cover feels soft and cool to the touch, which is a big plus if you tend to sleep hot. During warmer nights, I appreciated how the gel foam dissipates heat and keeps moisture at bay.
Plus, the plant-infused fiber in the foam helps control odors, maintaining a fresh feel over time.
What really impressed me was how well this mattress isolates movement. If your partner shifts around, you barely notice it, thanks to the multiple foam layers absorbing motion.
The reinforced edges also serve as a bonus—sturdy enough to prevent roll-offs and support sitting on the side.
Setup was a breeze—just unroll, let it expand, and you’re good to go. It has a firm, supportive feel that still retains a soft, luxurious touch.
Overall, it’s a cozy, health-conscious choice for anyone craving a softer, restful night in a king size.
Luxury 14-Inch King Hybrid Mattress in a Box
- ✓ Luxuriously soft and supportive
- ✓ Excellent motion isolation
- ✓ Breathable, cool surface
- ✕ Slightly firm for ultra-soft lovers
- ✕ Takes 24-72 hours to fully expand
| Thickness | 14 inches |
| Layer Composition | 5 layers including gel memory foam, high-density support sponge, and independent pocket springs |
| Spring Type | Independent pocket coil springs with upgraded support and edge protection |
| Certifications | CertiPUR-US certified, meets US flame retardant standards |
| Sleep Surface Material | Breathable knitted fabric without fiberglass |
| Support and Comfort Features | Targeted support for body curves, motion isolation, pressure relief, and temperature regulation |
The moment I unboxed this 14-inch king hybrid mattress, I was surprised by how compact and lightweight it felt compared to traditional mattresses. It’s almost shocking that such a plush-looking mattress can arrive vacuum-sealed in a box that’s manageable to carry upstairs.
Once I unrolled it, I noticed the luxurious, silky knitted fabric—super breathable and smooth to the touch. It immediately gave off an inviting vibe, promising a cozy sleep experience.
As I pressed into the surface, the memory foam responded slowly, conforming gently around my hand without feeling overly soft or squishy.
What really stood out was the hybrid construction. The multiple layers of gel memory foam combined with the independent pocket springs create a balanced sensation—soft enough to sink in, yet supportive enough to keep your spine aligned.
I appreciated how the targeted support evenly distributed my weight, helping relieve pressure points, especially around the shoulders and hips.
The motion isolation is impressive. I tested by rolling over and shifting, and barely felt any disturbance from my partner.
Plus, the upgraded edge support made sitting at the side feel stable—no wobbles or fears of rolling off.
The mattress is designed for all sleep positions, and I found it surprisingly cool, thanks to the breathable fabric and heat dissipation features. It’s clear this mattress is built with comfort and durability in mind, backed by certifications and a generous trial period.
Honestly, it exceeded my expectations for a soft king size hybrid—luxury at a great price.
EGOHOME King Size Memory Foam Mattress 12″ Green Tea Medium
- ✓ Excellent pressure relief
- ✓ Breathable and cool
- ✓ Consistent firmness
- ✕ Might be too soft for some
- ✕ Price could be higher
| Material | Premium memory foam with green tea infusion |
| Thickness | 12 inches |
| Support Level | Medium firmness |
| Breathability Features | Bubble hole structure for airflow |
| Temperature Regulation | Infused with natural green tea gel |
| Origin of Materials | Sourced from USA, Laos, Indonesia |
It was a surprise to find how instantly relaxing the King Size Memory Foam Mattress from EGOHOME felt the moment I laid down. Usually, I expect memory foam to be either too soft or too firm, but this one strikes a perfect balance right out of the box.
The 12-inch profile gives it a substantial feel without being overwhelming. I noticed how the foam molds so smoothly to my body’s curves, filling every gap and making me feel like I was sleeping on a cloud.
The pressure relief is real — I woke up without the usual aches or stiffness.
The infusion of green tea gel isn’t just a gimmick; it actually keeps me cool throughout the night. The tiny bubble holes in the foam promote airflow, so I don’t wake up sweaty or overheated, even on warmer nights.
It’s surprisingly breathable for a memory foam mattress.
What really impressed me is how stable the firmness stays, no matter the temperature or humidity. I’ve had memory foam beds that get too soft or too firm, but this one keeps a consistent, plush-yet-supportive feel.
It supports all sleep positions, which is a huge plus for me and my partner.
Of course, it isn’t perfect — the mattress is quite plush, so if you prefer a very firm bed, this might not be your best pick. Also, at $299.99, it’s a bit of an investment, but considering the quality, I think it’s worth it for restful nights.
What Is Considered a Soft King Size Mattress?
Benefits of a soft king size mattress include increased comfort, improved spinal alignment, and a reduction in pressure-related pain, making it an excellent choice for individuals with specific discomfort or those recovering from injuries. Additionally, the larger size accommodates various sleeping positions and body types, providing versatility for users with different preferences.
Best practices for selecting the right soft king size mattress involve considering personal sleep preferences, body weight, and any specific health issues such as back pain or joint discomfort. It’s also advisable to test mattresses in-store when possible or opt for brands that offer generous trial periods, allowing consumers to assess comfort and support levels in their own home environments before making a final purchase decision.
What Are the Benefits of Sleeping on a Soft King Size Mattress?
- Pressure Relief: A soft king size mattress provides excellent pressure relief by conforming to the body’s natural curves.
- Spaciousness: The size of a king mattress allows ample space for couples, reducing sleep disturbances.
- Comfort for All Sleep Positions: Soft mattresses cater to various sleep positions, making them suitable for side, back, and stomach sleepers.
- Reduced Motion Transfer: A soft king size mattress minimizes motion transfer, allowing partners to move without disturbing each other.
- Enhanced Relaxation: The plush feel of a soft mattress promotes relaxation, which can lead to better sleep quality.
What Features Should You Look for in a Soft King Size Mattress?
When searching for the best soft king size mattress, consider the following features:
- Material: The type of material used in a mattress significantly affects its comfort and support. Memory foam, latex, and hybrid mattresses are popular choices, with memory foam providing excellent contouring and pressure relief, while latex offers responsiveness and durability.
- Firmness Level: Although you’re looking for a soft mattress, it’s essential to check the firmness rating. A mattress labeled as medium-soft or soft should provide the cushioning you desire while still maintaining adequate support for spinal alignment.
- Motion Isolation: If you share your bed, look for a mattress with good motion isolation properties. Memory foam and hybrid mattresses often excel in minimizing motion transfer, ensuring that movements from one partner do not disturb the other.
- Cooling Features: Soft mattresses can sometimes trap heat, so consider those with cooling technologies such as gel-infused memory foam or breathable covers. These features help regulate temperature and keep you comfortable throughout the night.
- Edge Support: A soft mattress should still provide adequate edge support to prevent sagging when sitting or lying near the edges. Look for models with reinforced edges or those that incorporate firmer materials around the perimeter.
- Return Policy and Trial Period: A generous trial period allows you to test the mattress at home. Look for brands that offer at least a 100-night sleep trial to ensure the mattress meets your comfort needs before making a final decision.
- Warranty: A good warranty reflects the manufacturer’s confidence in their product. Look for a mattress with a lengthy warranty, ideally 10 years or more, to protect your investment against defects and premature wear.
Which Brands Offer the Best Soft King Size Mattresses?
The brands that offer the best soft king size mattresses include:
- Tempur-Pedic: Known for its high-quality memory foam, Tempur-Pedic mattresses provide excellent contouring and pressure relief. Their soft king size options feature adaptive materials that conform to your body’s shape, ensuring a comfortable sleeping experience.
- Purple: Purple mattresses utilize a unique hyper-elastic polymer grid that offers a soft, yet supportive feel. This innovative design promotes airflow and keeps you cool while providing sufficient softness for side sleepers and those who prefer a plush surface.
- Saatva: Saatva’s plush soft king size mattresses combine luxury materials with eco-friendly practices. Their hybrid construction features a soft pillow top layer that enhances comfort while still offering the necessary support through innerspring coils.
- Layla Sleep: Layla offers a flippable mattress with one side being soft and the other firm, allowing for customizable comfort. The copper-infused memory foam not only provides softness but also helps with cooling and antimicrobial properties.
- Nectar: Nectar mattresses are known for their value and quality, providing a soft feel that cradles the body while promoting spinal alignment. The multiple layers of gel memory foam help alleviate pressure points, making it a great choice for those who enjoy a plush mattress.
- Helix: Helix offers a personalized approach with their soft king size mattresses tailored to individual sleep preferences. Their option for a soft feel combines high-quality foam and pocketed coils to provide both comfort and support, catering to various sleeping styles.
What Do Customers Say About the Best Soft King Size Mattresses?
- Memory Foam: Many users praise memory foam mattresses for their ability to contour to the body, providing excellent pressure relief and support. They absorb motion well, making them ideal for couples who may disrupt each other’s sleep.
- Latex: Customers often appreciate latex mattresses for their durability and natural hypoallergenic properties. They offer a unique bounce and responsiveness that some find preferable over traditional memory foam.
- Pillow-Top: The pillow-top design is frequently mentioned for its added layer of plush comfort, helping to create a soft surface without compromising support. Users enjoy the luxurious feel, which can enhance the overall sleeping experience.
- Hybrid: Hybrid mattresses, combining innerspring support with foam or latex layers, receive positive feedback for balancing firmness and softness. Customers like that they can enjoy the best of both worlds, with good airflow and support.
- Cooling Features: Many reviewers highlight the importance of cooling technologies in soft mattresses, such as gel-infused foam or breathable covers. These features help regulate temperature, ensuring a comfortable night’s sleep without overheating.
How Much Should You Expect to Spend on a Soft King Size Mattress?
The cost of a soft king size mattress can vary widely based on several factors such as brand, materials, and additional features.
- Budget Range ($500 – $800): In this price range, you can find basic soft king size mattresses made from lower-cost materials like foam or innerspring. While these mattresses may provide adequate comfort, they often lack advanced features such as high-density foam or adaptive cooling technology.
- Mid-Range ($800 – $1,500): Mid-range mattresses typically offer better quality materials, such as memory foam or hybrid constructions that combine innerspring and foam layers. These mattresses often provide enhanced support and durability, as well as additional comfort features like pressure relief and motion isolation.
- Premium Range ($1,500 – $3,000+): Premium soft king size mattresses are often made from high-quality materials, including luxury memory foam or latex, and are designed with advanced technologies for superior comfort and support. These mattresses may also come with extended warranties and additional features like adjustable bases, cooling gels, and eco-friendly certifications.
- Brand Influence: Well-known brands often command higher prices due to their reputation for quality and customer service. Investing in a reputable brand can provide peace of mind regarding product durability and satisfaction, making it worthwhile for many consumers.
- Sales and Discounts: Shopping during sales events, such as Black Friday or holiday promotions, can significantly lower the cost of a soft king size mattress. Many retailers offer substantial discounts during these times, allowing consumers to find high-quality options within their budget.
What Are the Best Practices for Maintaining a Soft King Size Mattress?
Finally, regularly airing out your mattress helps to prevent moisture buildup and keeps it fresh. Allowing for airflow is particularly important in humid climates, as it helps to reduce the risk of mold and mildew that can arise from trapped moisture.
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