Sealy Posturepedic Hybrid Series Cobalt Firm


Half Foam / Half Springs

Quilt - Top of Mattress
Premium Stretch Knit Cover

Comfort - Padding Layers
1" SealyCool Gel Memory Foam
2" SealyCushion Extra Soft Foam
0.5" SealyCool Gel Memory Foam (center 3rd)
Phase Changing Material

Correct Back Support System
Coil System: Zoned Sealy Embrace Premier Coil
Coil Gauge: 14
SolidEdge HD Premier
3'' Fully Encased Foam

Bottom Line Is this a good bed for you?

Fit: Recommended for people who...

Prefer to sleep on their back
Prefer to sleep on their stomach
Prefer only a bit of softness

Function: Rated for its...

Motion Isolation
Pressure Relief

Features: Contains...

  • Foam
  • Gel
  • Gel Memory Foam
  • Innerspring
  • Memory Foam
  • Pocketed Coils
See specs for the Cobalt Firm »

Reviews Cobalt Firm

The Sealy Posturepedic Hybrid Series Cobalt Firm mattress model is recommended by 67% of owners on GoodBed (based on 9 ratings + 1 review).

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Ratings from Retailer Sites Cobalt Firm

Here are some large retailer sites where we’ve found ratings of this specific model. Note that mattress rating scores on retailer sites tend to be higher (learn more), and GoodBed can't assess the trustworthiness of these reviews.
Average Rating for this Model on Large Retailer Sites
(6 ratings)

Recent Praise Cobalt Firm

  • Comfort: Just right
  • Support: Excellent
  • Durability: Like new
  • Pressure relief: Never
  • Temperature: Good
  • Purchased in Jun 2016

Q&A Cobalt Firm

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Related Questions (2)

Model Features Cobalt Firm

Comfort Level:
Surface Type:


Mattress Components:
Special Characteristics:
Addresses concerns with:


Cover / Quilt:
  • Cover / Ticking Details: FiberLux Fiber
Edge Support:
  • Edge Support Details: UniCased Edge Support
Support Layer:
  • Core Details: PostureTech Coil
  • Foundation Name: Shock Abzzorber Plus
  • Foundation Type: Box Spring
  • Specific Foundation: Recommended
Overall Build:
  • FlameGuard™
  • No-Flip
  • Mattress Thickness: 13"

About this Model Cobalt Firm

Active (edit this)
Sealy Posturepedic
Sealy Posturepedic Hybrid Series
Model Name:
Cobalt Firm

Additional Information Cobalt Firm


The Cobalt Firm is an unquilted firm mattress model that is part of the Posturepedic product line manufactured by Sealy. The Cobalt Firm is a 13-inch thick no-flip mattress that offers edge support.

Editor's Note(s):

  • M1


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