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Sealy Halliday 12″ Medium

Sealy Halliday 12″ Medium


The Sealy Halliday 12″ Medium mattress features reinforced foam center for back and core support and cooling air gel foam for a more comfortable and cooler night’s sleep.



Featuring the trusted quality you’d expect from Sealy®, this mattress includes a reinforced foam center third for targeted back and core support, and SolidEdge™ technology to improve durability. The soft knit cover is treated with moisture-wicking MoistureProtect™ to help keep you cool, and Surface-Guard Technology™ to keep the mattress protected.


Sealy Halliday Medium Tight Top Sleepzone

1. Stretch Knit Cover with MoistureProtect and Surface Guard Technology: MoistureProtect helps you stay cool and comfortable, and Surface Guard Technology kills bacteria on the mattress surface to keep your mattress protected.

2. SealyCool Air Gel Foam: Get ultra-cushioning comfort and added air flow with this super-soft version of our high quality traditional foam, uniquely shaped with peaks and valleys.

3. SealyCool Gel Foam: SealyCool Gel Foam promotes a cooling environment and helps cushion, delivering comfort and support  with a medium feel.


4. StableEdge Pro: The durable coil system reinforces the mattress edge, giving you more space to sleep and preventing sagging overtime.

5. Response Encased Coil: This upgraded version of the durable Response Coil creates a stable, supportive surface while reducing motion transfer.


Sealy Halliday Medium Tight Top Sleepzone




• A cooler sleep environment

• Extra support for your back and core

• More responsive, full-body comfort and support

• Protection of your mattress surface from common allergens and bacteria

• Traditional innerspring feel


Our Posturepedic® Collection is inspired by our work with orthopedic specialists and features all of the quality and durability you expect from Sealy®, along with trusted support, motion-absorbing responsive coils, and a breathable, antibacterial cover.

Sealy Halliday Medium Tight Top Sleepzone

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Can’t decide which mattress is right for you? Check out our blog on Which Kind of Mattress is Right for You .

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