Sealy Posturepedic® Ashurst II 13" Medium Mattress
Balanced medium support with encased coils, gel foam comfort, and reinforced edge.
Sealy Posturepedic® Ashurst II 13" Medium Mattress
Balanced medium support with encased coils, gel foam comfort, and reinforced edge.
- 2026 Good Housekeeping award winner
- PrecisionFit™ Coils offer targeted support
- MoistureProtect™ Cover keeps you cool and dry
- Coil Edge provides lasting support & stability
- Designed for comfort to reduce nagging aches
Upgrade your sleep
Norman II
230 extra coils, reduced motion transfer, & durable DuraFlex™ Coil Edge support

Shop Norman II
How to get
The Sealy Posturepedic Ashurst II 13 inch Medium Mattress is made for sleepers who want a steady, in-between feel that blends supportive lift with comfortable cushioning. Recognized with the Good Housekeeping 2026 "Best Ergonomic Durable Support" Award, it is designed to help you rest with better alignment and wake up feeling more restored.
Inside, the Posturepedic Support System uses PrecisionFit Coils to provide responsive, lasting support as your body settles in. In a queen size, 736 individually encased coils help limit motion transfer, which can be especially helpful when sharing the bed.
On top, SealyComfort Gel Foam helps disperse weight for more responsive comfort, while SealyComfort Foam adds an extra layer of cushioning to round out the medium feel. A reinforced coil edge strengthens the perimeter so sitting and stretching out closer to the edge feels more stable. If you want help choosing the right comfort level, Mattress Firm Sleep Experts® are here because We make sleep easy.
Who it's best for
Disperses weight across the mattress and provides responsive cushioning and comfort.
Features exclusive PrecisionFit™ Coils arranged right where you need them to help maintain natural body alignment and helps reduce nagging Bed Aches™. This support system is surrounded by a coil edge.
Features
- MEDIUM COMFORT
- MATTRESS HEIGHT
- The Posturepedic® Support System features exclusive PrecisionFit™ Coils arranged right where you need them to help maintain natural body alignment and reduce nagging Bed Aches™. This support system is surrounded by a coil edge.
- SealySupport™ Gel Foam contributes additional foundational support to the mattress.
- Surface-Guard Technology™ protects against common allergens, such as dust mite dander and mold. The MoistureProtect™ Cover wicks moisture away while preventing mildew and odors.
Breakdown
- Quilting Layer
- 2" x 0.5" SealyComfort™ Foam
- Comfort Layer
- .5" SealyComfort™ Gel Foam
- 1.5" SealyComfort™ Gel Foam
- Support System
- 8" PrecisionFit Coil™
- 1" Base Foam
- Coil Edge
Free Delivery
Home protection from outside dirt and elements
Delivery where you want - front door, side door or even garage
Contactless delivery, meaning we won’t enter your home
Mattress Setup and Haul Away
Includes all Free delivery services plus:
New mattress and box spring setup
Removal of packaging material from purchased item(s)
Removal of old mattress set (equal to the number of pieces purchased)*
Three maximum flight of stairs purchased items can be carried
$109.99
Mattress Setup and Haul Away / Adj Base
Includes all Mattress Setup & Haul Away services plus:
Five maximum flight of stairs purchased items can be carried
Delivery and setup of up to three mattress sets
Setup of adjustable bases purchased from Mattress Firm
$159.99
10 Year Limited Warranty
All Sealy® mattresses and non-adjustable foundations are covered by the terms of this Limited Warranty. For purposes of this Limited Warranty, the term “product” means any non-adjustable foundation and any mattress manufactured by or for Sealy Mattress Manufacturing Company, LLC (“Sealy”). Sealy warrants that it will, at Sealy’s option, replace or repair Purchaser’s Sealy product sold in the U.S. or Puerto Rico by an authorized retailer if that product is defective due to faulty wo...

Product FAQs
How much does the Sealy Posturepedic® Ashurst II 13" Medium Mattress weigh?
What are the dimensions of a King, Queen, Full, and Twin size Sealy Posturepedic® Ashurst II 13" Medium Mattress?
Does this mattress need a box spring?
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What does “medium” feel like on the Posturepedic® Ashurst II?
What are PrecisionFit Coils designed to do?
How does this mattress help reduce motion transfer?
What difference does the reinforced edge make?
What comfort foams are included?
