VISCOFLEX King Size Memory Foam or VISCOFLEX Extra Firm Queen Mattress? Which VISCOFLEX Model to Buy
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When you compare the viscoflex king size memory foam vs extra firm queen mattress, you are looking at two distinct sleep solutions from the same brand. Both models prioritize spinal alignment and use certified, fiberglass-free materials for safe rest. The primary difference lies in their construction and size. One uses a three-layer foam system for motion isolation, while the other combines coils with foam for enhanced airflow. You need to decide which support style and dimensions fit your bedroom best.
Key differences
| Aspect | VISCOFLEX King 12 Inch Extra Firm | VISCOFLEX Extra Firm Queen Hybrid |
|---|---|---|
| Size | King (76 x 80 inches) | Queen (60 x 80 inches) |
| Thickness | 12 inches | 14 inches |
| Mattress Construction | 3-layer foam system | Coil-and-foam hybrid |
| Color | Black | Navy Blue |
| Cover Material | not listed | Cooling Gel |
| Special Features | Bed in a Box | not listed |
Which one should you choose?
Choose VISCOFLEX King 12 Inch Extra Firm if
- You need a larger sleeping surface for a King-sized bed frame.
- You prefer a traditional memory foam feel with deep contouring.
- You want a mattress with a bed-in-a-box delivery option.
Choose VISCOFLEX Extra Firm Queen Hybrid if
- You require a Queen-sized mattress that fits standard frames.
- You sleep hot and benefit from the airflow of hybrid coils.
- You want extra height with a 14-inch profile.
Verdict: Choose the King model if you prioritize spaciousness and the pressure-relieving properties of all-foam construction. Select the Queen hybrid if you need a standard size, prefer the responsive support of coils, and want a thicker profile. Both offer firm support and certified safety materials.
Key Specs and Build Differences
Mattress Construction
Product A is a pure memory foam design built with a three-layer foam system. It uses gel-infused memory foam for contouring and high-density base foam for support. Product B is a hybrid mattress that combines premium foam layers with hundreds of high-compression pocketed coils. The coil system is reinforced with industrial-grade steel to hold its shape. This structural difference means Product A relies entirely on foam for pressure relief, while Product B offers the responsive lift and airflow of springs alongside foam comfort.
Thickness
The two models differ significantly in profile height. Product A measures 12 inches tall, providing a standard profile for a King size bed. Product B stands at 14 inches thick, offering a taller, more substantial feel for a Queen size bed. The extra two inches in Product B come from its hybrid coil and foam construction. You should consider your bed frame clearance and personal preference for mattress height when deciding between the 12-inch and 14-inch options, as this affects how you get in and out of bed.
Motion Isolation
Product A minimizes motion transfer through its spring-free memory foam design, which absorbs movement by contouring to your body. This creates a silent space ideal for couples. Product B also prioritizes motion isolation but uses advanced pocketed coils to absorb 83% of motion before it reaches your side. While both models aim to keep you undisturbed, Product A relies on foam density, whereas Product B uses independent springs to create a personal sleep zone that stays still despite partner movement.
Color
The visual appearance of the mattresses differs based on the cover material. Product A features a black cover, which provides a sleek and modern look for your bedroom. Product B comes in a Navy Blue color, offering a slightly softer visual tone. This is a purely aesthetic difference that depends on your existing bedroom decor. Both covers are made from skin-friendly fabrics designed for comfort, but the color choice allows you to match the mattress more closely to your specific style preferences.
Cover Material
Product A highlights a skin-friendly surface with a gentle touch, crafted from Oeko-Tex fabrics. It does not specify a specialized cooling cover material in its attributes. Product B explicitly lists a Cooling Gel cover material as a special feature. This suggests Product B may have enhanced heat dissipation properties directly in the fabric layer. If you sleep hot, the dedicated cooling gel cover on Product B might offer better temperature regulation compared to the standard skin-friendly surface found on Product A.
Which viscoflex model suits your sleep style
Couples needing total silence and motion isolation
The all-foam construction of the King model minimizes motion transfer at the source. Its spring-free design creates a silent sleep space. You benefit from precise weight distribution that keeps your side of the bed still, ensuring uninterrupted rest even if your partner moves frequently during the night.
Sleepers wanting enhanced airflow and responsive support
This hybrid model uses independent pocketed coils that create tiny ventilation channels for continuous airflow. The open structure helps you stay comfortable by reducing heat retention. You get targeted support from high-compression springs that adapt to your curves while maintaining optimal spinal alignment for back and side sleepers.
Those prioritizing lumbar support in a king size
The extra firm King mattress features high-density base foam designed for full-body support and proper spine alignment. It offers targeted pressure relief through gel memory foam. This setup provides reliable firmness for all sleep positions, making it ideal for those who need dedicated lumbar support in a larger bed size.
The products compared
VISCOFLEX King 12 Inch Extra Firm
Best for: King size sleepers needing extra firm lumbar support
- Size
- King
- Thickness
- 12 inches
- Firmness
- Extra Firm
- Mattress Construction
- Memory foam
- Support Core
- High-density base foam
- Comfort Layer
- Gel memory foam
View on Amazon: VISCOFLEX King 12 Inch Extra Firm Affiliate link
This 12-inch King mattress uses a 3-layer foam system with gel memory foam and high-density base foam. It delivers an extra firm feel designed for proper spine alignment and lumbar support. The construction isolates motion and promotes airflow through gel infusion. It is certified fiberglass-free and suitable for all sleep positions. You get a 10-year coverage period.
Pros
- 12-inch thickness with 3-layer foam construction
- Extra firm feel for spine alignment
- Gel-infused memory foam for airflow
- CertiPUR-US and Oeko-Tex certified
- Fiberglass-free materials
Cons
- 12-inch profile is lower than the 14-inch competitor
- All-foam design lacks coil support layers
- No remote or app control features listed
Good fit if
- You need extra firm support for lumbar relief
- You sleep on a King size bed
- You prefer an all-foam construction
Skip if
- You require a 14-inch mattress height
- You want hybrid coil support
- You prefer a softer sleep surface
Verdict: VISCOFLEX King Extra Firm Memory Foam offers solid lumbar support and motion isolation for King size beds. It suits those who prioritize firmness and certified foam materials over height or hybrid designs.
VISCOFLEX Extra Firm Queen Hybrid
Best for: back and side sleepers needing extra firm support
- Size
- Queen
- Thickness
- 14 in
- Firmness
- Extra Firm
- Mattress Construction
- Coil-and-foam hybrid
- Comfort Layer
- Premium foam layers
- Certification
- CertiPUR-US, OEKO-TEX, fiberglass free
View on Amazon: VISCOFLEX Extra Firm Queen Hybrid Affiliate link
This 14-inch extra firm queen mattress uses a coil-and-foam hybrid design to support your spine. It features hundreds of high-compression springs that adapt to your curves while premium foam layers cushion pressure points. The open structure promotes airflow, and independent pocketed coils isolate motion. It is certified free of fiberglass and meets CertiPUR-US standards for low VOCs. This model suits back and side sleepers who need strong lumbar support.
Pros
- 14-inch hybrid construction with premium foam and high-compression springs
- Extra firm feel targets lumbar support and spinal alignment
- Independent pocketed coils absorb 83% of motion transfer
- Breathable open structure promotes continuous airflow
- CertiPUR-US and OEKO-TEX certified, fiberglass-free materials
Cons
- Only available in Navy Blue color option
- Limited to Queen, Full, and King sizes
- No mention of included accessories like pillows or sheets
Good fit if
- You are a back sleeper needing enhanced lumbar support
- You prefer an extra firm surface for spinal alignment
- You share a bed and need motion isolation
Skip if
- You need a King Size memory foam model
- You prefer a soft or medium firmness level
- You require multiple color options beyond Navy Blue
Verdict: VISCOFLEX 14-Inch Extra Firm Queen Hybrid offers targeted support for back and side sleepers who prioritize spinal alignment and motion isolation. Its extra firm hybrid build makes it a solid choice for those seeking durable, breathable comfort.
Specifications side by side
| Spec | VISCOFLEX King 12 Inch Extra Firm | VISCOFLEX Extra Firm Queen Hybrid |
|---|---|---|
| Size | King | Queen |
| Thickness | 12 inches | 14 in |
| Firmness | Extra Firm | Extra Firm |
| Mattress Construction | Memory foam | Coil-and-foam hybrid |
| Support Core | High-density base foam | not stated |
| Comfort Layer | Gel memory foam | Premium foam layers |
| Cover Material | Oeko-Tex fabric | not stated |
| Certification | CertiPUR-US, Oeko-Tex, fiberglass free | CertiPUR-US, OEKO-TEX, fiberglass free |
| Special Features | Motion isolation | not stated |
| Intended Use | Couples, extra lumbar support | not stated |
| Dimensions | 80 × 76 × 12 inches | 80 × 60 × 14 inches |
| Color | Black | Navy Blue |
| Model | F2503490 | P2503221 |
Frequently asked questions
Is the 12-inch King model too firm for side sleepers?
It is designed for extra firm lumbar support, which may feel too rigid for some side sleepers. The memory foam construction provides solid support, but the firmness level is prioritized over plush contouring. You should consider the 14-inch Queen hybrid if you need more pressure relief for your hips and shoulders.
Does the Queen hybrid mattress use coils or just foam?
The Queen model is a hybrid mattress, meaning it combines foam layers with a coil support system. This construction aims to offer both targeted support and breathability. The extra firm feel helps maintain spinal alignment, making it suitable for back and side sleepers who need durable comfort.
How wide is the King size mattress compared to the Queen?
The King size mattress measures 76 inches in width, while the Queen size is 60 inches wide. This 16-inch difference provides significantly more sleeping space for couples. Both models share an 80-inch length, ensuring they fit standard King and Queen bed frames respectively.
Are the foam materials safe and free from harmful chemicals?
Yes, both models use CertiPUR-US Certified foam. This certification ensures the materials are made without harmful chemicals like ozone depleters, heavy metals, or formaldehyde. You can trust that the foam layers meet strict standards for content, emissions, and durability for a safe sleep environment.
Which model is better for reducing motion transfer?
The King size memory foam model is better for motion isolation. Its all-foam construction minimizes movement transfer at the source, creating a silent sleep space. The hybrid Queen model also offers motion isolation, but the pure foam design of the King model provides superior dampening for light sleepers.
Do these mattresses come compressed in a box?
Yes, the King size model is explicitly described as a bed in a box. This means it ships compressed to make delivery and setup easier. You simply unbox it, allow it to expand, and it is ready to use. This feature simplifies moving the mattress into your bedroom.
What is the total height of the 14-inch Queen model?
The Queen model has a total height of 14 inches. This extra thickness compared to the 12-inch King model provides a higher profile. The additional height comes from its hybrid construction, which combines foam layers with a support core to deliver an extra firm feel.