Serta
Serta Perfect Sleeper Cobalt Calm 12" Mattress
Experience balanced comfort and targeted support with the Serta Perfect Sleeper Cobalt Calm mattress. This 13.25-inch plush mattress features a 3-zoned coil system designed to support your lower back and hips. Cool Twist Gel Memory Foam contours to your body while enhancing airflow, complemented by PillowSoft Aire Foam for an extra layer of cushioning. Built in the USA with anti-microbial protection for lasting freshness, this mattress is also compatible with adjustable bases, offering a cool and contouring sleep experience ideal for side sleepers seeking plush comfort.
Owner Satisfaction
4.0
/ 5
Category Rank
5202
/ 6148
#5202 in Mattresses
Brand
Serta
/ Serta
Who it's for
- Advanced Pressure Relief
- Excellent Motion Isolation
- Integrated Cooling Features
Who should skip it
- Subpar Edge Support
- Potential for Off-Gassing
- Durability Concerns Over Time
Key Specs
Brand
Serta
Model Number
5001060621060
Mattress Size
King
Thickness
13.25 inches
Firmness Level
Plush
Mattress Construction
Hybrid, Gel Memory Foam
Comfort Layer Material
Gel Foam, Memory Foam
Coil Density System
850-coil
Features
- Personalized comfort with body-contouring memory foam
- Enhanced cushioning and airflow
- Targeted support for lower back and hips
- Cooling comfort with gel memory foam
- Designed and built in the USA
- Compatible with adjustable bases
- Anti-microbial protection for freshness
- Plush comfort for ultimate softness
What customers say
The Serta Perfect Sleeper Cobalt Calm mattress offers impressive initial comfort and excellent cooling, making it a great choice for hot sleepers. Its medium firm feel provides a good balance of pressure relief and support for various sleeping positions, leading to better sleep quality and fewer morning aches. Motion isolation is also a standout feature, ideal for couples. However, durability is a significant concern. Many users report body impressions and sagging developing within the first year, diminishing the initial support and comfort. This decline in longevity impacts the overall value, especially considering the premium price. Some heavier individuals also find the edge support lacking.
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