Phoenix Firm Innerspring Mattress – 12 Inch Foam Encased

The Phoenix Firm Innerspring Mattress is a supportive, durable mattress designed for sleepers who prefer a firm feel with balanced comfort. Built with a 12-inch profile, this foam-encased innerspring mattress delivers reliable support, reinforced edges, and long-lasting performance.

At its core, a responsive innerspring coil system promotes proper spinal alignment and helps minimize motion transfer. The foam-encased perimeter strengthens edge support, reduces sagging, and allows you to comfortably use the entire sleep surface—ideal for couples and shared beds.

A quilted comfort top provides light cushioning to relieve pressure points while maintaining a firm support feel. This design makes the Phoenix Firm a great option for back sleepers, stomach sleepers, and side sleepers who prefer a firmer mattress with minimal sink. The breathable construction encourages airflow for cooler, more comfortable sleep.

Key Features

• Firm innerspring mattress with balanced comfort
• 12-inch mattress height
• Foam-encased edge support for durability and stability
• Responsive innerspring coil system
• Quilted top for pressure relief without excessive softness
• Supports proper spinal alignment
• Suitable for back, stomach, and side sleepers

The Phoenix Firm Mattress is an excellent choice for shoppers looking for a firm innerspring mattress, strong edge support, and dependable comfort for multiple sleep positions. This model has a 10 year warranty and is manufactured in North Carolina by MD Mattress.