The Blue 300 Firm model combines the feel of an extra-firm mattress with the benefits of our latest breakthroughs in memory foam technology. It combines our TempActiv™ Gel Memory Foam with a layer of EverCool® Fuze™ Memory Foam for enhanced cooling comfort that also supports every curve of your body. It also features a layer of Deep Reaction™ Memory Foam for a substantial, deep-down feel not often found in traditional memory foam.
TempActiv™ Gel Memory Foam
Evercool® Fuze™ Memory Foam
Deep Reaction™ Memory Foam Serta® Support Core
Compatible with Serta Adjustable Foundations
¾” TempActiv™ Gel Memory Foam
1” EverCool® Fuze™ Memory Foam
1” Serta® Support Foam
1 ½” Deep Reaction™ Memory Foam
7” Serta® Ultimate Edge® Foam Core
|Mattress Dimension & Coil Count||
Twin Width: 38" Length: 74"
Twin XL Width: 38" Length:80"
Full Width: 54" Length: 75"
Queen Width: 60" Length: 80"
King Width: 76" Length: 80"
Cal King Width: 72" Length: 84"