Cassandra Extra Firm Mattress by Eastman House

Cassandra X-Firm Mattress

Firm Support. Targeted Back Reinforcement. Stable Comfort.

The Cassandra X-Firm Hybrid Mattress is designed for sleepers who prefer a very firm, supportive sleep surface. With reinforced lumbar support, responsive hybrid construction, and cooling comfort, this mattress promotes proper spinal alignment and lasting durability.

Cool-to-the-Touch Cover

A cooling cover helps regulate temperature and wicks away heat to maintain a cool and comfortable sleep environment.

6” Euro Pillow Top X-Firm Quilt Layer

The extra-firm quilt layer provides a supportive surface feel with minimal give, creating the sensation of lying on top of the mattress rather than sinking into it.

Lumbar Zone® Support

Cooling gel-infused memory foam strengthens the lumbar region where weight is concentrated, delivering chiropractor-approved support and enhanced spinal alignment.

Cushioning & Therapeutic Comfort Layers

Responsive foam layers adapt to the body while relieving pressure on the neck, shoulders, back, and hips.

4” Individually Wrapped Coils

Individually wrapped coils contour to the body while reducing motion transfer and promoting better circulation.

High-Density Transition Foam

Engineered transition foam reacts ergonomically to body weight, helping stabilize the mattress and support the firmer sleep surface.

Comfort Coil System with LifEdge® Foam Encasement

The reinforced coil system improves airflow and motion isolation while high-density foam rails strengthen edge support.

Durable Base Support

A reinforced base layer provides long-lasting strength and structural stability.

Why Choose the Cassandra X-Firm?

• Extra-firm supportive feel
• Ideal for back and stomach sleepers
• Cooling breathable sleep surface
• Targeted lumbar support
• Hybrid airflow and motion isolation
• No fiberglass or toxic chemical flame retardants
• 10-Year Non-Prorated Warranty