Product Description

King Koil Extended Life – Onyx Ultra Plush

Indulge in luxurious comfort and personalized support with the Onyx Ultra Plush from King Koil’s Extended Life collection. Designed with natural Talalay latex, advanced cooling technology, and a premium coil system, this mattress combines plush comfort with superior durability—backed by one of the best warranties in the industry.

Why You’ll Love It

Natural Talalay Ultra Plush Latex

Superior elasticity and resilience that adapt to your body’s unique shape. Offers breathable, pressure-relieving comfort with long-lasting durability and a personalized feel.

HyperGraph Memory Foam

Engineered for cooling comfort, this layer quickly dissipates heat, conforms to your curves, and relieves pressure points for a soothing night’s sleep.

ContourPro Encased Coil System

792 individually encased coils that reduce motion transfer, relieve body pressure points, and conform to your natural curves for adaptive support.

Extra Features for Peace of Mind

• Anti-Microbial Safeguard Fibers for a healthier sleep surface
• HD Foam Encasement for edge-to-edge stability
• Everlast® Base Foam for long-lasting strength and durability

With the Onyx Ultra Plush, you’ll enjoy personalized comfort, breathable support, and a cool, restful sleep every night.

Mattress Specs

Comfort & Craftsmanship

Natural Talalay Ultra Plush Latex

• Superior elasticity and adaptability
• Highly resilient & durable
• Pressure-relieving comfort
• Personalized support

HyperGraph Memory Foam

• Quickly dissipates heat
• Cooling, pressure-relieving comfort
• Conforms to the body’s curves

Support System

792 ContourPro Encased Coil System

• Reduces motion disturbance
• Conforms to the body’s natural shape
• Relieves pressure points

Additional Features

• Anti-Microbial Safeguard Fibers
• HD Foam Encasement
• Everlast® Base Foam

Warranty

One of the best warranties in the industry

The King Koil Xtended Life Hybrid mattress, available at Best Mattress in Las Vegas, NV, and St. George, UT, is designed to give you cooler, deeper, and more restorative sleep every night while delivering exceptional durability that lasts for decades.

Certified Safe and Durable

All foams are CertiPUR-US® certified, meaning they meet rigorous standards for safety, durability, and performance. High-density Everlast™ foams resist sagging and body impressions, helping the mattress maintain its comfort and shape far longer than traditional models.

Built for the Long Haul

The King Koil Xtended Life Hybrid mattress is crafted with high-quality materials and expert construction designed to last up to 25 years—backed by an industry-leading warranty. Unlike standard mattresses that wear out in a few short years, this mattress retains its support and feel, ensuring exceptional sleep quality for decades.

Sizes Available

– Twin: 38″ x 75″
– Twin XL: 38″ x 80″
– Full: 54″ x 75″
– Queen: 60″ x 80″
– King: 76″ x 80″
– California King: 72″ x 84″

With its perfect combination of pressure relief, cooling comfort, and unmatched durability, the King Koil Xtended Life Hybrid mattress is more than a bed—it’s an investment in better health, improved sleep quality, and mornings where you wake up feeling refreshed and ready to take on the day.