Serta iComfort Pro Level 3 Kingston Firm
GoodBed Expert Review
Our Take on Serta iComfort Pro Level 3 Kingston Firm

Founder of GoodBed, Leading Mattress Expert
- Want a mattress with a medium amount of softness
- Are mainly a back sleeper
- Are seeking a mattress with excellent materials and construction
- Want your mattress to be made from highly natural and/or organic materials
- Often sit or sleep along the edge of your bed (edge support is very good)
- Prefer no 'memory feel' in your mattress
- Want a mattress that helps you stay cool while you sleep
- Would like a mattress that performs very well when used with an adjustable base
- Can be easily disturbed by other movements in the bed (though motion isolation is still pretty good)
- Don't like any bounce in your mattress
- Are allergic to latex
- Are concerned about being able to lift or maneuver a rather heavy mattress
Materials & Construction
Cover | 2.25″ quilted cover (w/ "CoolFeel Pro Fabric") |
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Comfort Layers |
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Transition Layers | 1″ poly foam ("Support Foam") |
Support Layers |
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Total Thickness | 14'' |
Compare These Products
Serta iComfort Pro Level 3 Kingston Firm vs. Other Beds
Compare the Serta iComfort Pro Level 3 Kingston Firm mattress side by side with other Serta models, or with mattresses from other brands.
Where to Buy
Serta iComfort Pro Level 3 Kingston Firm

Serta Online Seller
- Free delivery
- Return policy
- Financing available
Frequently Asked Questions
Serta iComfort Pro Level 3 Kingston Firm
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In our evaluation of the Serta iComfort Pro Level 3 Kingston 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 iComfort Pro Level 3 Kingston 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 Kingston Firm to have very good adjustable base compatibility.
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Here are the in-home trial details for mattresses purchased from the Serta website:
- Policy: Comfort Guarantee -- Mattresses can be returned for refund (after 30 day minimum trial).
- Fees: A 15% return fee + $200 for return shipping is deducted from the amount credited for returns.
- Notes: The iComfort/iSeries In-Home Trial Period is 120 nights. For other products, Serta's Comfort Assurance program is 45 nights.
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Here are the delivery terms for mattresses purchased from the Serta website:
- Policy: Delivery available - Free with any mattress purchase
- Set-up: Set-up provided free with delivery
- Removal: Removal of old mattress provided free with delivery
- Notes: Free “white glove” (2-person) delivery to your bedroom. Includes unpacking and set-up as well as removal of packaging and old bedding if needed.
Expert Q&A
See questions from other mattress buyersOther Models from Serta
Additional Information
General Description
(Product description from Serta)
A firm-feel supportive 14” mattress with 5 zones for improved spinal alignment, a cool-to-the-touch fabric, and naturally-derived, responsive latex foam for a restorative sleep.
Materials & Construction
- Our exclusive 5 ZoneResponse™ Design for improved spinal alignment, designed to offer targeted comfort and support where you need it most.
- 10” of naturally-derived True Response™ Latex Foam* designed for a responsive feel, increased breathability, and greater longevity than memory foam.
- Sleep comfortably cool throughout the night with CoolFeel™ Pro Fabric, plus graphite-infused latex foam designed to redistribute heat away from the body.
- PillowSoft® Aire provides enhanced cushioning for exceptional comfort and promotes air flow through its unique gently rippling design.
- 100% USA Assembled
- *Based on Queen Size.
- Law Label Lookup Model Number: 500801531
Responsibly crafted
- CertiPUR-US® Certified means our foam was tested for and is free from harmful chemicals and gasses.
Compatibility
- Compatible with most frames, including: traditional frames, box springs, platform frames, slatted frames, bunky boards, and adjustable frames.
Warranty
- Length: 10-year warranty.
- Indentation coverage: 1.5" and deeper.
- Proration: 10 years of full ("non-prorated") replacement coverage.
About This Model
Status | Active (released 2024) |
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Manufacturer | Serta |
Line | Serta iComfort Pro |
Collection | Serta iComfort Pro Level 3 |
Comfort Level | Medium |
Surface Type | Tight Top |
Support Type | Latex |
Build Details |
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Corrections
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