Serta iComfortECO Smooth Hybrid S15GL Firm
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Serta iComfortECO Smooth Hybrid S15GL Firm vs. Other Beds
Compare the Serta iComfortECO Smooth Hybrid S15GL Firm mattress side by side with other Serta models, or with mattresses from other brands.
GoodBed Expert Review
Our Take on Serta iComfortECO Smooth Hybrid S15GL Firm

Founder of GoodBed, Leading Mattress Expert
- Want a mattress with a medium amount of softness
- Are either a back or side sleeper, especially if you weigh 200 lb or less
- Can sometimes be disturbed by other movements in the bed (motion isolation is very good)
- Would like a mattress that performs very well when used with an adjustable base
- Enjoy sleeping just a bit more 'in' your mattress than 'on' it
- Prefer an average amount of 'memory feel'
- Are a stomach sleeper, especially if you weigh more than 250 lb
- Have a strong tendency to sleep hot (temperature regulation is pretty good, but not the best)
- Don't like any bounce in your mattress
- Regularly sit or sleep along the edge of your bed (edge support is good, but not the best)
- Want a natural or organic mattress (though this mattress is still pretty good in terms of avoiding harmful chemicals)
Materials & Construction
Cover | stretch knit ("CoolTemp Cover powered by REPREVE") |
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Comfort Layers |
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Transition Layers | 1″ polyfoam ("Comfort Foam") |
Support Layers |
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Total Thickness | 12'' |
Frequently Asked Questions
Serta iComfortECO Smooth Hybrid S15GL Firm
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In our evaluation of the Serta iComfortECO Smooth Hybrid S15GL Firm mattress, we found it to be a Medium (5) on the GoodBed rating scale (1= firmest, 9 = softest).
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Yes, the Serta iComfortECO Smooth Hybrid S15GL Firm mattress is adjustable base compatible. This means it is designed to be used on an adjustable base without incurring damage or voiding the warranty. In our review of this mattress, we tested it on an adjustable base to look for any adverse effects as the head and foot are elevated, and to see how well it conforms to the contours of the base both with and without the weight of a sleeper. Overall, we found the iComfortECO S15GL Firm to have very good adjustable base compatibility.
Expert Q&A
See questions from other mattress buyersAdditional Information
General Description
Featuring select materials up to 70% sustainable, this supportive mattress offers a hybrid construction with a smooth, memory foam feel and a 5-Zone Support System for targeted pressure relief.
- CoolTemp Cover Powered by REPREVE, this cool-to-the-touch, breathable cover is made with recycled plastic bottles.
- 1" TerraFusion Foam, made from 28% plant-based material, this foam contours and cradles your body.
- 1" EverCool Fuze Gel Memory Foam for a dynamic combination of cooling gel and premium memory foam to cradle and cool you in a pressure-relieving embrace.
- 1" Comfort Foam.
- 5-Zone Support System, made from 85% recycled steel, this exclusive system provides targeted pressure relief and durable support.
- 1" Recycled Fiber Support Base.
Mattress Specifications:
- Cover Details: Cool-to-the-touch, breathable CoolTemp cover.
- Comfort Layer Details: TerraFusion Foam contours and cradles your body.
- Second Comfort Layer Details: EverCool Fuze Gel Memory Foam for a dynamic combination of cooling gel and premium memory foam to cradle and cool you in a pressure-relieving embrace.
- Transition Layer Details: Comfort Foam.
- Support Layer Details: 5-Zone Support System, this exclusive system provides targeted pressure relief and durable support.
- Base Layer Details: Recycled Fiber Support Base.
Warranty
- Length: 10-year warranty.
- Indentation coverage: 0.75" and deeper.
- Other Notes: Some warranties may be pro-rated. Check law label for details.
About This Model
Status | Discontinued |
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Line | Serta iComfortECO (2023-2024) |
Collection | Serta iComfortECO Smooth Hybrid |
Comfort Level | Medium |
Surface Type | Unquilted |
Support Type | Innerspring |
Build Details |
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Corrections
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