Comes in four variables:
Basic Firm
Firm
Advance Plush 
Advance Firm
 
 
The all-new, enhanced Serta Perfect Sleeper® mattress provides even better pressure-relieving comfort and support, while maintaining a balanced sleeping temperature to help promote undisturbed sleep. This is a zoned comfort and pressure relief system, giving more support to our core area. The Pillow Soft foam provides enhanced cushing for exseptional comfort and promotes airflow through it's uniqe gentle rippled design. The gel foam targest lumbar support for the best confort in your hip and back area. This collection starts with 725 coils in the Basic. In the next levels up, move up to 825 Custom Support™ Coil System for exceptional support and reduced motion transfer, plus Serta’s BestEdge® Foam Encasement technology, an extra-deep foam rail made to help reduce edge roll-off and extend the sleep surface. Serta Perfect Sleeper® mattresses also have antimicrobial mattress protection to keep your mattress fresh and clean from odor-causing bacteria.
*This collection provides more than 40% better pressure relief as an average of new Perfect Sleeper vs. average of previous Perfect Sleeper. The new Perfect Sleeper alleviates aches and pains caused by pressure points. They are Compatible with an adjustable bed. The Warranty is 10-year non-prorated and they meets federal fire-retardant safety standard
Made in Michigan- USA
 
Comfort Type:
Firm
Plush
 
Mattress Height/Layers: 
10" Basic Firm
10.5" Firm
11" Plush
12" Advance Plush
12" Advance Firm