VISCOFLEX Firm Full Size Mattress or VISCOFLEX King Size Memory Foam? Which VISCOFLEX Model to Buy
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This guide compares the viscoflex firm full size mattress vs king size memory foam to help you decide. Both options share certifications like CertiPUR-US and Oeko-Tex, and both offer a 365-night trial with a 10-year warranty. They also both avoid fiberglass. The main difference lies in their construction and size. One uses a hybrid design with coils, while the other relies on a multi-layer foam system. Each approach offers distinct benefits for support and airflow.
Key differences
| Aspect | VISCOFLEX 14 Inch Full Hybrid | VISCOFLEX King 12 Inch Extra Firm |
|---|---|---|
| Size | Full (54 x 74 inches) | King (76 x 80 inches) |
| Thickness | 14 inches | 12 inches |
| Firmness | Medium Firm | Extra Firm |
| Mattress Construction | Hybrid (pocket springs and foam) | 3-layer foam system |
| Cover Material | Cooling Gel | not listed |
| Color | Navy Blue | Black |
Which one should you choose?
Choose VISCOFLEX 14 Inch Full Hybrid if
- You need a mattress for a smaller room or guest bed where a Full size fits better.
- You prefer a hybrid design with pocket springs for targeted support and enhanced airflow.
- You want a thicker profile at 14 inches with a Medium Firm feel.
Choose VISCOFLEX King 12 Inch Extra Firm if
- You need a larger sleeping surface for two people or more space.
- You prefer an all-foam design that minimizes motion transfer between sleepers.
- You want a firmer, Extra Firm feel for strong lumbar support.
Verdict: Choose the Full Hybrid if you prioritize airflow, a thicker profile, and a medium-firm feel. Choose the King Memory Foam if you need a larger bed size, extra firmness, or superior motion isolation. Both models provide certified safety and long-term warranty coverage.
Full Hybrid vs King Foam Comparison
Thickness and Height
The VISCOFLEX 14 Inch Full Hybrid stands at 14 inches tall, offering a substantial profile that may suit those who prefer a deeper mattress feel. In contrast, the VISCOFLEX King 12 Inch Extra Firm is 12 inches thick. While both are robust, the Full Hybrid provides two additional inches of height. This extra thickness comes from its hybrid coil-and-foam construction, whereas the King model relies on a three-layer foam system. You might choose the thicker option if you need more cushioning depth, or the slightly lower profile if you prefer a standard height. Both sizes fit standard bed frames without issue.
Firmness Level
Firmness is a critical choice for your sleep comfort. The VISCOFLEX 14 Inch Full Hybrid is rated as Medium Firm, designed to adapt to your body's curves while providing targeted support. The VISCOFLEX King 12 Inch Extra Firm offers an Extra Firm feel, utilizing high-density base foam for rigid support. If you need strong lumbar support or prefer a very solid surface, the King model is the better fit. If you want a balance where you feel cushioned but still supported, the Full Hybrid’s Medium Firm rating is more versatile. This difference directly impacts how your spine aligns during the night.
Mattress Construction
The internal build of these mattresses differs significantly. The VISCOFLEX 14 Inch Full Hybrid uses a combination of pocket springs and foam layers. This hybrid design includes hundreds of high-compression springs that adapt to your body, combined with cooling gel comfort foam. The VISCOFLEX King 12 Inch Extra Firm is a pure memory foam mattress. It uses a three-layer foam system with gel memory foam on top and high-density base foam underneath. If you prefer the responsive bounce and airflow of coils, choose the Full Hybrid. If you want the deep contouring and sink of all-foam, the King model is the correct choice.
Motion Isolation
Both mattresses aim to minimize disturbance, but they achieve it through different mechanisms. The VISCOFLEX 14 Inch Full Hybrid features advanced pocketed coils that absorb 83% of motion before it reaches your side of the bed. This independent spring design creates a personal sleep zone. The VISCOFLEX King 12 Inch Extra Firm uses a spring-free design where the memory foam contours to your body and minimizes motion transfer at the source. Both are excellent for couples. The Full Hybrid offers specific data on motion absorption, while the King model relies on the inherent properties of foam to keep things quiet.
Size and Dimensions
These models serve different bedroom needs based on their dimensions. The VISCOFLEX 14 Inch Full Hybrid is a Full size mattress, measuring 54 inches wide by 74 inches long. It weighs 77.4 pounds. The VISCOFLEX King 12 Inch Extra Firm is a King size mattress, measuring 76 inches wide by 80 inches long. The King model provides significantly more sleeping surface area, making it ideal for couples or taller individuals. The Full size is more compact and suitable for single sleepers or smaller rooms. Your choice depends entirely on the available space in your bedroom and how much room you need to move.
Which VISCOFLEX Mattress Fits Your Needs
Full-size sleepers needing back support
This 14-inch hybrid model offers medium firmness with pocketed coils. The 83% motion isolation helps couples sleep undisturbed. The open coil structure promotes airflow to keep you cool. You get targeted lumbar support without the sink-in feel of all-foam designs. The 14-inch height provides a substantial profile for those who prefer deeper beds.
King-size sleepers wanting extra firmness
This 12-inch extra firm mattress uses a 3-layer foam system. The high-density base foam ensures proper spine alignment for all sleep positions. The gel memory foam contours to your body while minimizing motion transfer. You get a silent, spring-free sleep surface that prioritizes orthopedic support and pressure relief in a larger king size.
Side sleepers needing pressure relief
The hybrid construction of this full-size mattress cushions shoulders and hips effectively. The medium firmness level adapts to your curves while maintaining spinal alignment. The cooling gel comfort foam layer helps regulate temperature. You benefit from the balanced support of coils combined with the pressure-relieving properties of foam, ideal for side sleeping positions.
Back sleepers prioritizing lumbar support
The extra firm rating of this king mattress provides robust support for back sleepers. The high-density foam core disperses weight evenly to prevent sagging. You get targeted lumbar support that keeps your spine neutral throughout the night. The firm feel prevents excessive sinkage, ensuring you wake up with proper alignment and reduced stiffness in your lower back.
The products compared
VISCOFLEX 14 Inch Full Hybrid
Best for: side and back sleepers needing full-size support
- Size
- Full
- Thickness
- 14 in
- Firmness
- Medium Firm
- Mattress Construction
- Hybrid (pocket springs and foam)
- Comfort Layer
- Cooling gel comfort foam
- Certification
- CertiPUR-US, OEKO-TEX, fiberglass free
View on Amazon: VISCOFLEX 14 Inch Full Hybrid Affiliate link
The VISCOFLEX 14-Inch Hybrid Full Mattress combines pocket springs with cooling gel foam for medium-firm support. At 14 inches thick, it offers targeted spinal alignment and pressure relief for side, back, and combination sleepers. The hybrid design promotes airflow to reduce heat retention. It weighs 77.4 pounds and includes CertiPUR-US and OEKO-TEX certifications for safe materials. This model provides a 365-night trial and a 10-year warranty.
Pros
- 14-inch hybrid construction with pocket springs and foam
- Medium-firm feel targets spinal alignment and pressure relief
- Cooling gel comfort foam promotes airflow and reduces heat
- CertiPUR-US and OEKO-TEX certified, fiberglass-free materials
- Pocketed coils absorb 83% of motion transfer
Cons
- Full size limits width to 54 inches
- Weighs 77.4 pounds, making it heavy to move
- No smart features or app connectivity listed
Good fit if
- You need a medium-firm mattress for back or combination sleeping
- You prefer a thicker 14-inch profile for enhanced support
- You want a hybrid design that balances airflow and motion isolation
Skip if
- You require a King size for a larger bed frame
- You need a lighter mattress under 70 pounds for easy setup
- You prefer an all-foam construction without coils
Verdict: VISCOFLEX 14-Inch Hybrid Full Mattress suits side and back sleepers who want targeted support in a full-size bed. Its hybrid build and cooling foam address heat and pressure points effectively.
VISCOFLEX King 12 Inch Extra Firm
Best for: Back sleepers needing 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 extra firm king mattress uses a three-layer foam system with gel memory foam on top. It targets lumbar support and spine alignment for all sleep positions. The design isolates motion and promotes airflow. It includes CertiPUR-US and Oeko-Tex certifications. You get a 365-night trial and 10-year coverage. It is a solid option for those needing firm support.
Pros
- 12-inch thickness with extra firm feel
- Gel-infused memory foam for cooling
- Motion isolation for undisturbed sleep
- CertiPUR-US and Oeko-Tex certified
Cons
- 12-inch profile is lower than the 14-inch competitor
- Memory foam construction may retain more heat than hybrids
- No remote or smart app integration
Good fit if
- You need extra firm support for back pain
- You sleep as a couple and want motion isolation
- You prefer a lower-profile bed frame
Skip if
- You prefer a plush or medium feel
- You want a taller 14-inch mattress profile
- You need active cooling technology
Verdict: VISCOFLEX King Memory Foam Mattress is a firm, supportive choice for back sleepers who prioritize motion isolation and certified materials over height.
Specifications side by side
| Spec | VISCOFLEX 14 Inch Full Hybrid | VISCOFLEX King 12 Inch Extra Firm |
|---|---|---|
| Size | Full | King |
| Thickness | 14 in | 12 inches |
| Firmness | Medium Firm | Extra Firm |
| Mattress Construction | Hybrid (pocket springs and foam) | Memory foam |
| Support Core | not stated | High-density base foam |
| Comfort Layer | Cooling gel comfort foam | Gel memory foam |
| Cover Material | not stated | Oeko-Tex fabric |
| Certification | CertiPUR-US, OEKO-TEX, fiberglass free | CertiPUR-US, Oeko-Tex, fiberglass free |
| Special Features | not stated | Motion isolation |
| Intended Use | not stated | Couples, extra lumbar support |
| Dimensions | 74 × 54 × 14 inches | 80 × 76 × 12 inches |
| Weight | 77.4 pounds | not stated |
| Color | Navy Blue | Black |
| Model | P2503221 | F2503490 |
Frequently asked questions
Is the 14-inch full hybrid mattress better for side sleepers?
Yes, the VISCOFLEX 14 Inch Full Hybrid is designed for side and back sleepers. Its hybrid construction combines support with pressure relief. The cooling gel cover helps manage heat, while the firm feel targets pressure points effectively for a comfortable night's rest.
Does the king size memory foam mattress isolate motion well?
Yes, the VISCOFLEX King 12 Inch Extra Firm prioritizes motion isolation. This feature is ideal for couples who need to minimize disturbance. The memory foam construction absorbs movement, ensuring one partner’s shifts do not disrupt the other’s sleep.
Which model offers better lumbar support for back sleepers?
The VISCOFLEX King 12 Inch Extra Firm is best for back sleepers needing firm lumbar support. Its extra firm feel provides the necessary spinal alignment. The CertiPUR-US certified foam ensures safe materials while delivering the targeted support required for back pain relief.
How do the dimensions of the full and king sizes differ?
The full size measures 54 inches wide and 74 inches long. The king size is significantly larger at 76 inches wide and 80 inches long. Choose the full size for tighter spaces or single sleepers, and the king for maximum room and comfort.
Is the full size hybrid mattress heavier than the king foam option?
The full size hybrid weighs 77.4 pounds. The king size memory foam weight is not listed in the specifications. You should consider the weight when moving the full size model, as it is a substantial piece of furniture to handle alone.
What color options are available for these VISCOFLEX mattresses?
The VISCOFLEX 14 Inch Full Hybrid comes in Navy Blue. The VISCOFLEX King 12 Inch Extra Firm is available in Black. These color choices allow you to match the mattress cover to your existing bedroom decor or personal preference.
Do both mattresses come compressed for easier delivery?
Yes, both models feature a Bed in a Box design. This means they are compressed and rolled for shipping. This format simplifies delivery and allows you to set up the mattress easily in your home without dealing with bulky, uncompressed packaging.