City Mattress Arden Firm Innerspring Mattress

Firm support. Targeted alignment. Structured sleep at a practical price. 

The Arden Firm Innerspring Mattress delivers a supportive, structured sleep experience with added responsiveness and durability. Developed in collaboration with Spring Air, its coil-based design creates a breathable sleep surface that adapts to movement while maintaining consistent support throughout the night. 

A reinforced lumbar zone provides targeted support through the center of the body, helping promote proper alignment and reduce pressure where it matters most. The firm comfort profile offers a smooth, even surface with minimal sink—keeping the body lifted and well-supported. 

With improved airflow, reliable support, and a more responsive feel, Arden Firm is designed for sleepers who want greater stability and a sleep surface that holds its shape over time. 

Best for back and stomach sleepers seeking a firm, supportive feel with enhanced alignment and a more responsive sleep surface—at a practical price point. 

• Comfort Level: Firm
• Made in the USA
• Sleep Style: Back and stomach sleepers seeking firm support and alignment
• Mattress Type: Innerspring — firm comfort with coil support system
• Adjustable Base Compatible: Yes
• Key Benefits: Firm support, targeted lumbar reinforcement, breathable coil system, durable structure, reinforced edge support, consistent alignment
• Sustainability: CertiPUR-US® certified foams made without harmful chemicals 

Quilt: Designed for a smooth, supportive surface with minimal sink. 

• Soft Quilt Comfort Foam provides light surface comfort without compromising firmness 

Comfort Layers: Engineered to reinforce support while maintaining a firm feel. 

•  Medium Back Supporter Comfort Foam enhances stability and pressure distribution
• Comfort Bridge layers create smoother transitions between comfort and support 

Support System: A durable coil system designed for consistent, breathable support. 

• 460 Verti-Coil System provides stable, traditional innerspring support
• High-density foam edge rails reinforce the perimeter and prevent roll-off
• Cooling Gel Lumbar layer delivers targeted support through the center third 

Recommended Foundation:

• Rio 2.0
• City Mattress Blue Foundation

• Dimensions:  

  Twin Size: 38" W x 74" D x 10" H; 68 lbs. (includes shipping carton) 

  Twin XL Size: 38" W x 80" D x 10" H; 71 lbs. (includes shipping carton) 

  Full Size: 54" W x 75" D x 10" H; 91 lbs. (includes shipping carton) 

  Queen Size: 60" W x 80" D x 10" H; 109 lbs. (includes shipping carton) 

  King Size: 76" W x 80" D x 10" H; 139 lbs. (includes shipping carton) 

  California King Size: 72" W x 84" D x 10" H; 139 lbs. (includes shipping carton)