Serta Perfect Sleeper Cobalt Calm Extra Firm King Mattress - Blue/Gray

Serta Perfect Sleeper Cobalt Calm Extra Firm King Mattress - Blue/Gray

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43E-Q17-500104181/60

About this item

The Serta Perfect Sleeper Cobalt Calm Extra Firm King Mattress is built to deliver lasting comfort, superior support, and a refreshing sleep experience. Its 3-zoned coil design provides targeted pressure relief and spinal alignment, while the Cool Twist® Gel Memory Foam contours to your body for personalized comfort. Engineered with an extra firm feel, it’s an excellent choice for back and stomach sleepers who need maximum support. With available upgrades for enhanced cooling, this mattress ensures you stay at the ideal sleep temperature all night. Designed for durability and performance, it’s the perfect blend of comfort and reliability.

Product Highlights

  • 3-zoned coil design provides targeted support & relief
  • Cool Twist Gel Memory Foam contours for comfort
  • Extra firm feels perfect for back & stomach sleepers
  • Optional upgrades add enhanced cooling & softness
  • Built with durable materials for long-lasting use
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This item is available for delivery only in California, Arizona, and Nevada.

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