The iComfort by Serta has a base and cooling upgrade with different layers:
note: the base model only looks to have 1 layer.
The Zephyr Mattress is made of 5 layers of polyurethane foam:
Experience cool and supportive sleep with the iComfort by Serta® mattress. Designed to keep sleepers cool, its multi-layered mattress-cooling foam technology provides support, resilience, and temperature regulation for a refreshing and comfortable sleep environment, regardless of whether you're a hot sleeper or not.
The Zephyr 2.0 mattress combines memory foam comfort with exceptional edge support, ensuring a balanced and stable sleep experience. Its dense foam layer enhances firmness and provides true support around the edges for a restful night's sleep.
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We ship via UPS Standard in the USA and Canada directly from our warehouse to your door. By doing this we cut out 3rd party distribution methods, lowering our carbon footprint. We offer free shipping and free returns in Canada. For the Northwest Territories, Yukon, and Nunavut, please note that there will be an added charge for shipping.
Thank you for checking out this Serta iComfort vs Polysleep Zephyr mattress comparison. We have tried to compare all the necessary information to help you choose which mattress is the most suitable for you.