Comforpedic® Phenom™ Collection is the exclusive collection of standard memory foam, not gel memory foam, mattresses manufactured by Simmons®. With a combination of temperature-sensitive NXG® Memory Foam and Advanced NXG® Memory Foam, these mattresses ensure incredible pressure relief and a comfortable sleeping temperature. The Transflexion foam core requires no break-in period that will give you the best night sleep from the first night.

Phenom Collection offers several softness options: firm 9.5", plush 10", luxury plush 11", supreme plush 12".

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Mattress Type: 
Product Height: 
Quilt/Top Layers: 

Sculpted stretch knit cover

Comfort Layers: 

AirCool® Memory Foam with TruTemp™ Gel
AirCool® Memory Foam with TruTemp™ Gel

AirCool® Memory Foam AirCool® Memory Foam
Blended Latex

Support System: 

6.5" AirCool® Transflexion® Transflexion® Support Core Support Core

Edge Support: 

Gradient Edge®


Waterfall Triton Foundation

Foundation Height: Regular 9", Low Profile 5.5"
Adjustable Base Compatible

25 Year Limited - first 15 years Non-Prorated WarrantyNon-Prorated + 10 years Prorated Warranty Prorated
No Flip, No Rotate No Flip, No Rotate
Body indentation Body indentation of 3/4" or greater

Shopping Tips: 

It is the same mattress as Simmons ComforPedic Bloomfield Firm or Astoria Firm. Older version of this product featured NXG Memory Foam and Advanced NXG Memory Foam.