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Serta Perfect Sleeper Cobalt Calm 12" Extra Firm Mattress

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Current price $1,199.00
Original price $1,399.00
Original price <Original price $1,399.00
Original price $1,399.00
From $1,199.00
Current price $1,199.00
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Product Highlights


The Serta Perfect Sleeper Cobalt Calm 12" Extra Firm Mattress.  Featuring a 3 zoned coil design, this mattress offers pressure relief and support where you need it, with a cool twist® gel memory foam that contours to your body—with upgrades available for even more cooling and comfort.

  • Coolfeel™ fabric - a luxurious, breathable cover with a cool-to-the-touch sensation from technology that is plant-derived. Our biobased phase change material consists of 53% biobased content and is certified through the usda biopreferred® program.
  • Antimicrobial mattress protection - keeps your mattress fresh and clean from odor causing bacteria. This product protects the mattress but does not protect users against bacteria, viruses, germs or other disease organisms.
  • Cool twist® gel memory foam - this breathable, gel-infused memory foam gently cradles your body while promoting enhanced airflow.
  • 850 edition custom 3 zoned support coil system. This system of individually wrapped coils provides contouring, cradling support from edge-to-edge, minimizing the impact of your partner’s movements

  • Mattress Top Type: Tight Top
  • Mattress Type: Innerspring
  • Included: 1 Mattress(es)
  • Features: Antimicrobial, Wrapped Coils, Temperature Regulating, Foam Layer
  • Additional Information: Conforms To Body, Suitable for Adjustable Bed Frames
  • Manufacturer Warranty: 10 Year Limited
  • Bed Size: TwinMeasurements: 76 Length/Inches, 12 Height/Inches, 40 Width/Inches
  • Maximum Weight Limit: 1000 Lbs
  • Base Material: 90% Metal, 10% Foam
  • Comfort Type: Extra Firm
  • Care: Spot Clean
  • Certifications And Listings: Certipur-Us Certified
  • Country of Origin: Made in US
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