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Sealy Response Essentials Castra IV Firm

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Product description from Sealy:

Quilt - Top of Mattress
-Woven Cover
-FlameGuard AirLoft Fiber
-1/2" Sealy Cushion Air Foam

Comfort - Padding Layers
-3/4 oz. Resilium
-1" SealySupport Firm Foam

Correct Back Support System
-Sealy Response Coil System
-3/4 oz. Resilium
-Coil Gauge: 13.75

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
  • Innerspring
See specs for the Castra IV Firm »
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Reviews Castra IV Firm

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Ratings from Retailer Sites Castra IV Firm

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(15 ratings)
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Q&A Castra IV Firm

Model Features Castra IV Firm

Support Core:
Comfort Level:
Surface Type:
Tight Top


Mattress Components:
Special Characteristics:


Overall Build
  • No-Flip
  • Mattress Thickness: 8.5"
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About this Model Castra IV Firm

Active (edit this)
Sealy Response
Sealy Response Essentials
Model Name:
Castra IV Firm

Additional Information Castra IV Firm


The Castra IV Firm is a tight top spring core firm mattress model that is part of the Response product line manufactured by Sealy.


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