Serta Perfect Sleeper Delray Extra Firm Innerspring Mattress

Firm, cool, and built to last.

 

A City Mattress exclusive, the Delray Extra Firm delivers steady, dependable support for those who prefer a solid sleep surface. The reinforced coil system and dense support foams keep your body lifted and aligned to help reduce back strain and stiffness. Cooling fabric and gel-infused foam regulate temperature, so you stay cool and comfortable all night. 

 

Best for back and stomach sleepers who want firm, stable support with long-lasting comfort and value. 

 

• Comfort Level: Extra Firm
• Made in the USA
• Best for: Back and Stomach Sleepers
• Mattress Type: Innerspring
• Adjustable Base Compatible: Yes
• Benefits: Extra-firm support for proper alignment, cool-to-the-touch surface, enhanced airflow, stabilized feel from multiple support foams, reduced motion transfer, and a fresher sleep surface with antimicrobial protection
• Sustainability: CertiPUR-US® certified foams for safer materials, durability, and lower emissions

 

Quilt: Cool, breathable, and stabilizing.

• CoolFeel™ Fabric: Cool-to-the-touch, breathable cover featuring plant-derived cooling technology.
• Fiber Layer: Adds a subtle touch of cushioning to balance the extra-firm feel.

 

Comfort Layers: Firm, supportive, and cooling.

• Serta® Support Foam (2 layers): Dual layers of firm support foam for a more rigid, stabilizing surface with gentle cushioning.
• Cool Twist® Gel Memory Foam: Gel-swirled memory foam adds contouring comfort while improving airflow and heat dissipation.
• Serta® Support Foam: Reinforces the comfort system with balanced cushioning and durability.
• Serta® Balanced Support Foam: Enhances overall stability and ensures consistent feel across the mattress.

 

Support System: Zoned coils for stronger alignment.

• 850 3-Zoned Coil System: Firmer support zones under the lower back and hips deliver ergonomic reinforcement while maintaining comfort elsewhere.
• Individually Wrapped Coils: Reduce motion transfer and help the mattress adapt to your body’s movements.

 

Recommended Foundation:

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

 

Warranty: 10 Years 

 

Dimensions:

• Twin Size: 38" W × 74.5" L × 12" H (44 lbs)
• Twin XL Size: 39" W × 79.5" L × 12" H (47 lbs)
• Full Size: 54" W × 74.5" L × 12" H (62 lbs)
• Queen Size: 60" W × 79.5" L × 12" H (74 lbs)
• King Size: 76" W × 79.5" L × 12" H (95 lbs)
• California King Size: 72" W × 83.5" L × 12" H (97 lbs)