SERTA · RESEARCH-BASED REVIEW
iSeries NXG Mattress 3500 Medium Foam review
Choose it when you want the medium NXG foam feel without coils.
- Construction
- Memory foam
- Published feel
- Medium
- Home trial
- 100 nights
What sets it apart
This 3500 uses a high-density foam core with reinforced edges, NXG memory foam and cooling-oriented cover materials.
Our take
Choose it when you want the medium NXG foam feel without coils. It is a different construction from the 3500 Hybrid, despite sharing the number.
Reasons to consider it
A coil-free design is worth comparing if you prefer a quieter, less spring-driven response.
The tradeoff
A foam comfort stack may feel more enclosing and make position changes less effortless than a responsive spring or latex build.
These comfort observations are editorial inferences from construction and published firmness, not results of hands-on testing.
Price and configurations
The recorded queen price is $2,599. This is a dated mattress-only offer, not a live checkout quote.
For context, the iSeries NXG Hybrid Mattress 3500 starts at $2,599 in this catalog, the same recorded starting price. Compare the construction and firmness below before treating the difference as an upgrade.
Price snapshot: September 10, 2026. USD, before tax. Delivery, accessories, bases and later promotions can change your total.
Trial, returns and setup
The product information advertises 100 nights for the home trial on direct purchases. Check the required adjustment period, pickup or return fees, condition rules, eligible foundations and warranty exclusions. A retailer purchase may have different terms.
Sources and review approach
- Serta: product specifications and options
- Serta: original pricing source · recorded September 10, 2026
Specifications reviewed September 11, 2026. We use published product information and clearly identify our inferences. We have not slept on or lab-tested this mattress, and we do not assign fabricated test scores.
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