Extra Firm King Size Mattress 14 Inch - Hybrid Mattress for Extra Back and Lumbar Support - 365 Nights Trial & 10 Years Warranty - Upgrade Pocket Springs Bed Mattress in a Box with Cooling Gel Comfort

Features

• Extra Firm King Hybrid Mattress in a Box / 14 Inch King Size Mattress / Extra Firm Hybrid Mattress King for Lumbar Support & Pain Relief
• 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
• 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
• 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
• Fiberglass-Free, Certified Materials - Worried about chemicals in your mattress? VISCOFLEX 14-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

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 14"Th

Item Weight: 111.5 Pounds

Item Firmness Description: Extra Firm

Top Style: Euro Top

Fill Material: Extra Firm 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: Extra 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 14"Th

Item Weight: 111.5 Pounds

Item Dimensions: 80 x 76 x 14 inches

Item Depth: 14 inches

Fill Material: Extra Firm Mattress with Gel Memory Foam & Pocket Springs

Mattress Comfort Layer Material: Gel Memory Foam

Material Type: Hybrid 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, Motion Isolation, Temperature Regulation, Spinal Alignment

Model Number: P2503221

Manufacturer: VISCOFLEX

Manufacturer Part Number: P2503221

Is Extendable: No

Unit Count: 1.0 Count

Included Components: King Mattress in a box