Serta iSeries NXG 1500 All-Foam Luxury Firm Mattress

Firm comfort. Cooling relief. Reliable support.

The Serta iSeries NXG 1500 All-Foam Luxury Firm mattress is designed for sleepers who prefer a supportive, stable sleep surface with minimal sink. Its luxury firm feel helps keep the body properly aligned by preventing the hips and midsection from sinking too deeply into the mattress—an essential benefit for back and stomach sleepers. This balanced support promotes healthy spinal alignment while still offering gentle contouring to relieve pressure at key contact points.

Advanced cooling features deliver immediate surface cooling and help regulate temperature throughout the night, while high-density foam layers provide consistent support across the mattress. The all-foam construction absorbs motion to reduce sleep disturbances, creating a quiet, uninterrupted sleep environment. The result is a firm yet comfortable mattress that delivers reliable support, cooling comfort, and long-lasting performance.

Best for back and stomach sleepers who need stable, firm support to maintain proper spinal alignment, as well as anyone who prefers a firmer, more supportive sleep feel.

 

Comfort Level: Luxury Firm

Made in the USA with Global Components

Sleep Style: Back and Stomach Sleepers

Mattress Type: All-Foam Mattress

Adjustable Base Compatible: Yes

Benefits: Cooling comfort, pressure relief, motion isolation, durable support

 

Sustainability:

• CertiPUR-US® Certified Foams – Made without ozone depleters, PBDE flame retardants, mercury, lead, or other heavy metals, and tested for low VOC emissions to support healthier indoor air quality.
• Durable Foam Construction – High-density foams are designed to maintain comfort and support over time, helping reduce premature replacement.

 

Quilt:

• CoolFeel™ Cover delivers an instantly cool-to-the-touch sleep surface
• CushionQuilt™ Foam adds breathable surface comfort

 

Comfort Layers:

• Carbon Fiber Memory Foam contours while channeling heat away from the body
• NXG™ Memory Foam provides high-density, pressure-relieving support

 

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 × 12" H
• Full Size: 54" W × 74.5" L × 12" H
• Queen Size: 60" W × 79.5" L × 12" H
• King Size: 76" W × 79.5" L × 12" H
• California King Size: 72" W × 83.5" L × 12.00" H

 

Recommended Foundation:

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