Buy Now, Pay Later
- – 6-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Recently Viewed
Color: Navy Blue
Size: King
Set name: 12" Firm
Features
- 12 Inch King Mattress / Medium Firm Hybrid Mattress King Size
- Optimal Firmness Where You Need It - Hundreds of high-compression springs adapt to your body's unique curves, delivering targeted support and pressure relief. Reinforced with industrial-grade steel, these springs hold their shape for years of use. So you wake up without stiffness - just refreshed, balanced comfort
- Breathable Mattress King Size - Unlike all-foam mattresses that trap heat, this coil-and-foam hybrid mattress combines responsive coils with premium foam layers to promote continuous airflow. The open structure of the hybrid system acts like tiny ventilation channels, helping you stay comfortable throughout the night
- Ideal Spinal Alignment for All Positions - Engineered to maintain optimal spinal alignment all night, this king mattress caters to all sleep positions. Side sleepers enjoy perfect cushioning for shoulders and hips, back sleepers receive enhanced lumbar support, while combination sleepers experience effortless transitions - all for deeper, restorative rest
- Motion Isolation for Undisturbed Sleep - Sleep soundly through any movement with the advanced pocketed coils. This independent spring design absorbs 83% of motion before it reaches your side of the bed, creating a personal sleep zone that stays perfectly still - no matter how much your partner moves
- Fiberglass-Free, Certified Materials - Worried about chemicals in your mattress? VISCOFLEX 12-inch mattress king contains no fiberglass or off-gassing. With ultra-low VOCs that meet strict CertiPUR-US standards, it lets you breathe easy and sleep safe with your family
- About VISCOFLEX - Certified by CertiPUR-US and OEKO-TEX, VISCOFLEX king size mattresses are crafted to offer lasting comfort and peace of mind. Enjoy a 365-night home trial and 10 years of coverage, with dedicated sleep consultants ready to support you every step of the way
Description
ABOUT VISCOFLEX For 40+ years, we’ve led the way in sustainable sleep innovation - caring for you and the planet. WHY CHOOSE US? How firm is this Viscoflex mattress, and is it recommended for back or joint pain relief? It's designed as extra-firm mattress combined memory foam with pocket springs, perfect for back & joint pain. Its 7-zone support and motion isolation provide targeted pressure relief, with users reporting pain reduction within weeks. Do firm mattresses have comfortable cushioning? How is their support and pressure relief vs. pure memory foam mattress? Absolutely, our firm mattress offers both cushioning and support. Unlike traditional memory foam mattress, the 880+ pocket spring system ensures proper spine alignment, prevents sinking, and provides durable pressure relief for lasting comfort. What is the expected lifespan of a firm mattress, and is it certified 100% fiberglass-free for safety? With quality materials & durable support, a firm mattress like ours typically lasts 5–8 years. And yes, it's certified 100% fiberglass-free. Perfect for growing children, allergy-sensitive sleepers, and anyone seeking a healthier sleep environment. Does this hybrid mattress come with a 365-night trial, service support, and overall offer the best value for money? Sure, the Viscoflex mattress in a box offers a 365-night trial & lifetime service support—reach out anytime. Perfect for platform beds, slatted bases, adjustable bases, or the floor, it’s the best value mattress for lasting comfort and peace of mind. Who is this firm mattress ideal for? It is particularly well-suited for: Office workers, drivers, long-sitters, those with mild lumbar discomfort, side/combo sleepers, middle-aged/elderly users, and anyone wanting contouring comfort + spinal support.
Brand: VISCOFLEX
Size: King
Product Dimensions: 80"L x 76"W x 12"Th
Item Weight: 114 pounds
Item Firmness Description: Firm
Top Style: Euro Top
Fill Material: Mattress with Gel Memory Foam & Pocket Springs
Special Feature: Targeted Lumbar Hip & Shoulder Support, Reinforced Edge Support, Advanced Motion Isolation, Pressure & Pain Relief, Temperature Regulation, Skin-Friendly & Breathable, Fire-Retardant & Fiberglass-Free, Non-Toxic & Odorless See more
Color: Navy Blue
Coil Type: Pocketed Coil
Item Firmness Description: Firm
Additional Features: Targeted Lumbar Hip & Shoulder Support, Reinforced Edge Support, Advanced Motion Isolation, Pressure & Pain Relief, Temperature Regulation, Skin-Friendly & Breathable, Fire-Retardant & Fiberglass-Free, Non-Toxic & Odorless
Mattress Coil Type: Pocketed Coil
Construction Type: Hybrid
Size: King
Item Dimensions L x W x Thickness: 80"L x 76"W x 12"Th
Item Weight: 114 pounds
Item Thickness: 12 inches
Item Depth: 12 inches
Item Dimensions: 80 x 76 x 12 inches
Fill Material: Mattress with Gel Memory Foam & Pocket Springs
Material Type: Mattress with Gel Memory Foam & Pocket Springs
top-style: Euro Top
Color: Navy Blue
Brand Name: VISCOFLEX
Model Name: ADULT MATTRESS
Product Benefits: Pressure Relief
Model Number: P2503220
Number of Items: 1
Mattress Type: Standard Mattress
Manufacturer: VISCOFLEX
Item Highlight: Mattress 365 Nights Trial & 10 Years Warranty - Upgrade Pocket Springs Bed Mattress in a Box with Cooling Gel Comfort Foam
Included Components: king mattress in a box
Manufacturer Part Number: P2503220
Set Name: 12" Firm
Frequently asked questions
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
