Serta Perfect Sleeper Cobalt Calm 12″ Extra Firm

Experience ultimate comfort and support with the Serta Perfect Sleeper 12″ Cobalt Calm Mattress. This high-quality mattress is designed to provide pressure relief and extra-firm support exactly where you need it, thanks to its innovative three-zoned coil design and Cool Twist® Gel Memory Foam that conforms to your body’s contours.



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Invest in your sleep quality and experience the exceptional comfort and support of the Serta Perfect Sleeper Cobalt Cal . With its advanced features, including the 3-zoned coil design, Cool Twist® Gel Memory Foam, and CoolFeel™ Fabric, this mattress provides a restful and rejuvenating sleep experience. Enjoy the perfect balance of comfort, support, and luxury night after night. Order yours today and wake up refreshed.

3-Zoned Coil Design for Targeted Support: Discover the unique 3-zoned coil design of the Perfect Sleeper Dazzling Night mattress. Individually wrapped coils provide precise support, minimizing motion transfer and ensuring restful sleep for you and your partner. Experience edge-to-edge contouring and cradling support where it matters most.

Cool Twist® Gel Memory Foam for Pressure Relief: Experience the gentle cradling effect of Cool Twist® Gel Memory Foam. This breathable, gel-infused memory foam conforms to your body, relieving pressure points and promoting airflow for a cooler sleep environment. Wake up refreshed and revitalized.

CoolFeel™ Fabric for a Luxurious Cool-to-the-Touch Sensation: Indulge in the luxurious sensation of CoolFeel™ Fabric. This breathable cover with its cool-to-the-touch technology derived from plants enhances your sleep experience. Enjoy a comfortable and refreshing sleep throughout the night.

High-Quality Construction and Additional Features: Learn about the exceptional quality of the Serta Perfect Sleeper 12″ Cobalt Calm Mattress, including:

  • 850 Edition Custom 3 Zoned Support Coil System: Individually wrapped coils offer precise contouring and cradling support, minimizing disruptions caused by your partner’s movements.
  • Coil count: 850 (queen)
  • Breathable Cool Twist® Gel Memory Foam: Gentle body-cradling with enhanced airflow for a cooler sleep experience.
  • CoolFeel™ Fabric: Luxurious, breathable cover with a cool-to-the-touch sensation derived from plant-based technology.
  • Antimicrobial Mattress Protection: Keeps your mattress fresh and odor-free by combating bacteria, though it does not protect against viruses, germs, or other disease-causing organisms.
  • 10-year non-prorated warranty for peace of mind
  • Made in Denver Colorado
  • Compatibility with adjustable beds for personalized comfort

Additional information

Mattress Size

California King, Full, King, Queen, Split King, Twin, Twin XL