Serta
Perfect Sleeper Cobalt Calm 12" Extra Firm Mattress
Discover the Serta Perfect Sleeper Cobalt Calm mattress, offering an extra-firm feel for optimal support. This 12-inch mattress features a three-zoned coil system for targeted comfort and Cool Twist Gel Memory Foam that contours to your body while providing a cooling sensation. Enhanced with CoolFeel fabric and antimicrobial properties, it ensures a fresh and breathable sleep environment. Ideal for those who prefer a firm surface, it promotes proper alignment and reduces pressure points for a truly restorative night's sleep.
$979.99
Owner Satisfaction
4.3
/ 5
Category Rank
3677
/ 6148
#3677 in Mattresses
Price vs Category Average
-41%
Below average
Height
12
/ inches
Who it's for
- Exceptional Spinal Alignment
- Enhanced Edge-to-Edge Stability
- Reliable Cooling Technology
Who should skip it
- Limited Pressure Point Cushioning
- Significant Break-In Requirement
- Potential for Noticeable Motion Transfer
Key Specs
Height
12 inches
Cover Material
CoolFeel Fabric
Mattress Construction
Gel Memory Foam, Innerspring
Cooling Technology
Gel Infused, Cooling Fabric Cover
Firmness Level
Extra Firm
Features
- Extra firm support for optimal alignment
- Cooling gel memory foam for comfort
- Three-zoned coils for targeted support
- Antimicrobial properties for freshness
- Breathable CoolFeel fabric
- 12-inch thickness for substantial feel
What customers say
The Cobalt Calm is highly regarded for its exceptional firm support, ideal for those prioritizing robust back alignment. Many users report immediate relief from morning discomfort, attesting to its quality construction. While the firmness is a significant advantage, a brief adjustment period may be necessary for some. This mattress is considered a valuable investment, significantly enhancing sleep posture and comfort for firm mattress lovers. It offers a superior sleep experience for those who prefer a truly supportive surface.
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$980