Serta iSeries NXG 4500 All-Foam Ultra Plush Mattress

Ultra-plush comfort. Deep pressure relief. Elevated cooling.

The Serta iSeries NXG 4500 All-Foam Ultra Plush mattress is designed for sleepers who want maximum softness and pressure relief without sacrificing supportive stability. Its ultra plush feel allows the body to gently sink in, cradling the shoulders and hips to relieve pressure—making it especially beneficial for side sleepers and those with sensitive joints. This deep contouring helps reduce tension and promotes a more relaxed, restorative sleep experience.

Advanced cooling layers work together to regulate temperature and prevent heat buildup, helping you stay comfortable throughout the night. Beneath the plush comfort layers, a supportive foam core provides consistent alignment and stability, ensuring the mattress remains supportive despite its soft feel. Motion-isolating foam construction also minimizes sleep disruptions, creating a calm, uninterrupted sleep environment.

Best for side sleepers and plush-comfort lovers who prefer deep cushioning, pressure relief, and cooling comfort with reliable underlying support.

 

Comfort Level: Ultra Plush

Made in the USA with Global Components

Mattress Type: All-Foam Mattress

Sleep Style: Side Sleepers

Adjustable Base Compatible: Yes

Benefits: Maximum pressure relief, cooling comfort, motion isolation

 

Sustainability:

• CertiPUR-US® Certified Foams – Made without harmful chemicals and tested for low emissions.
• Durable, High-Density Foams – Engineered for long-term comfort and support.
• Made in the USA with Global Components

 

Quilt: CoolFeel™ Cover delivers an immediately cool sleep surface

 

Comfort Layers:

• Carbon Fiber Memory Foam with CoolFeel™ Plus System provides cooling contouring
• EverCool® Supreme Memory Foam with Total Edge® Support delivers deep cushioning
• NXG™ Memory Foam enhances pressure relief
• EverCool® Fuze Gel Foam promotes airflow and temperature regulation

 

Support System: High-density foam core with Ultimate Edge™ Support for edge-to-edge stability

 

Warranty: 10-Year Limited Warranty

 

 

Dimensions: 

• Twin XL Size: 39" W × 79.5" L × 13.5" H
• Full Size: 54" W × 74.5" L × 13.5" H
• Queen Size: 60" W × 79.5" L × 13.5" H
• Split Head Queen Size: 60" W × 79.5" L × 13.5" H
• King Size: 76" W × 79.5" L × 13.5" H
• Split Head King Size: 76" W × 79.5" L × 13.5"
• California King Size: 72" W × 83.5" L × 13.5"

 

Recommended Foundation:

• Rio 2.0 Adjustable Bed Base | City Mattress
• Serta Naples Foundation – City Mattress