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Serta iComfort Blue 300 Firm

Owners Rating Based on 40 ratings

Product description from Serta:

¾” TempActiv™ Gel Memory Foam:
• The TempActiv™ Gel Memory Foam is infused with gel cooling beads that helps the Memory Foam absorb and dissipate excess heat, while still providing pressure relieving support.

1” EverCool® Fuze Gel Memory Foam:
• The EverCool® Fuze Gel Memory Foam is a conforming and supportive foam that is infused with Gel to provide a cooler feel to the Memory Foam.

1” Serta Support Foam:
• This foam combines gentle cushioning with extra support, for firmer comfort.

1.5” Deep Reaction™ Memory Foam:
• This foam provides firm support throughout the mattress.

7” Serta® Ultimate Edge® Foam Support Core

From the GoodBed Editors:

To decide whether a Serta iComfort mattress is right for you, see our video update for an in-depth explanation of the iComfort Blue mattresses.

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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 little to no softness

Function: Rated for its...

Motion Isolation
Pressure Relief

Features: Contains...

  • Foam
  • Innerspring
  • Memory Foam
  • Pocket Springs
See specs for the Blue 300 Firm
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Reviews Blue 300 Firm

The Serta iComfort Blue 300 Firm mattress model is recommended by 50% of owners on GoodBed (based on 40 ratings).

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Ratings from Retailer Sites Blue 300 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
(422 ratings)
Mattress Firm
(198 ratings)
(115 ratings)
(26 ratings)
(83 ratings)

Q&A Blue 300 Firm

Model Features Blue 300 Firm

Support Core:
Comfort Level:
Surface Type:


Mattress Components:
Special Characteristics:


Overall Build
  • No-Flip
  • Mattress Thickness: 11.25"
  • Length: 10-years warranty
  • Indentation coverage: 0.75 and deeper
  • Other Notes: Some warranties may be pro-rated. Check law label for details
Which mattress from Serta is best for you?

Before shopping at Serta, take a short quiz to find which of their mattresses best matches your unique needs and preferences. Powered by GoodBed’s intelligent matching technology, you can even get your personal match score for each of Serta's available mattresses, in addition to other online options that match your criteria.

About this Model Blue 300 Firm

Active (edit this)
Serta iComfort
Model Name:
Blue 300 Firm

Additional Information Blue 300 Firm


The Blue 300 Firm is an unquilted foam core firm mattress model that is part of the iComfort product line manufactured by Serta.


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