Description
Description
Serta® Knox Firm Mattress
Experience dependable support and lasting comfort with the Serta® Knox Firm mattress—crafted for sleepers who prefer a firmer, more supportive feel. Designed to keep your body properly aligned, the Knox Firm delivers consistent comfort with minimal sink, helping you wake up feeling refreshed and supported. Serta® Individually Wrapped Coil Technology adapts to your movements while reducing motion transfer, making it ideal for shared sleep. Firm Serta® Comfort Foam layers provide a supportive sleep surface that resists sagging and promotes healthy spinal alignment. Topped with a breathable knit cover, the Knox Firm delivers a cool, stable, and supportive sleep experience night after night.
Individually Wrapped Coil Technology
Provides targeted support and limits motion transfer by allowing each coil to move independently.
Firm Serta® Comfort Foam
Offers a supportive, responsive feel that helps maintain proper alignment without excess softness.
Firm Comfort Feel
Ideal for back and stomach sleepers or anyone who prefers a more stable, supportive surface.
Breathable Knit Cover
Enhances airflow and provides a clean, comfortable sleep surface.
Stable Foam Base Layer
Creates a durable foundation that supports the coil system and extends mattress longevity.
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