Experience the perfect blend of comfort and support with our Sealy® PosturePedic Plus Determination II Ultra Firm Tight Top Mattress. This mattress is designed to offer a luxurious sleep experience, combining state-of-the-art materials and innovative design for a restful night’s sleep night after night, especially for those who prefer a firmer sleeping surface.
12" Profile: This mattress features a 12-inch profile, providing firm support and a significant presence in your bedroom, ideal for those who appreciate a more supportive sleep surface.
ComfortLoft™ Knit Cover with Chill™ & AllergenProtect™: The top layer of the mattress comes with a specially knit cover that remains cool to the touch, ensuring a comfortable sleep environment. It also protects against common allergens, promoting a healthier sleep surface.
SealyCool™ Gel Memory Foam: The cooling comfort of our gel-infused memory foam contours to your body, providing pressure relief and relaxation with a firmer feel.
Targeted Support: This mattress is designed to offer enhanced support for your back and core, providing targeted relief and helping maintain proper spinal alignment.
SealySupport™ Ultra Firm Foam Comfort Layer: The ultra firm foam comfort layer offers a very firm feel, delivering the utmost support for those who need it.
Response Pro™ HD Encased Coil System: Our advanced coil system responds to your body’s movements, providing personalized, firm support and reducing motion transfer for undisturbed sleep.
DuraFlex™ Pro Coil Edge System: Reinforced mattress edges ensure maximum sleeping surface and durability, making the most of the firm support right to the edge of the bed.
SealySupport™ Foam: An additional layer of support foam enhances the overall firmness and longevity of the mattress.
8 Vertical Handles: Conveniently positioned handles make moving and adjusting your mattress easy.
10-Year Limited Warranty: Rest assured with a 10-year limited warranty, reflecting our commitment to quality and customer satisfaction.
The Sealy® Posturepedic Plus Determination II Ultra Firm Tight Top is not just a mattress, it's a haven for deep, restorative sleep that energizes your days. Ideal for those who prefer a firmer mattress, embrace the comfort and quality of Sealy and wake up feeling refreshed and ready to take on the world!
Full-Service Delivery: Delivery, Set Up, and Removal - Our Kind, Friendly delivery staff will deliver your new mattress set and/or power base and remove a similar mattress set. Included on purchases of $599 or more. For purchases of less than $599, this is available for an additional fee.
If you would like to request that our drivers wear shoe coverings in your home, please let us know in advance so that we can make arrangements.
Threshold Delivery: Items purchased will be placed at your front door, similar to other delivery services.
Customer Pick-Up: Most items are available for pick-up at our four southern Utah locations. Once your order is placed, we will contact you with availability to pick it up at your desired location.
Custom Quote for Out-of-Area: We offer several out-of-area delivery options. Most items can be delivered within a few weeks.
We deliver in Washington County on Mondays, Wednesdays, Thursdays and Fridays. We deliver to Iron County on Tuesdays and Saturdays. If you need special arrangements, they can be made via chat or by calling our store.
Full: 12" x 54" x 74"
Queen: 12" x 60" x 79"
King: 12" x 76" x 79"
Split King: 12" x 39" x 80" (each piece)
Twin XL: 12" x 39" x 80"
Cal King: 12" x 72" x 83"
Split Cal King: 12" x 36" x 83" (each piece)
See what our customers are saying
“The only mattress I’ll buy”
As long as they keep making this mattress, I’ll keep buying it. This is my second and I love it. Firm, deep and comfortable. What more could you want?
Cibraltar, Salt Lake City, UT
“I would buy this product again and again”
For years I’ve woken up with my back and hips hurting! Until I purchased this hybrid mattress! I definitely recommend and will buy again! Very impressed!
MaureenB, Columbus, MS
“Best night’s sleep”
This is my second purchase. The first was so nice I had to buy a second for my other room.
Robert the Mechanic, Lorton, VA
Every day. Every mattress. Every sleeper. For 140 years, Americans have chosen Sealy® for comfort and quality they can trust.
expertly engineered. Thoroughly Tested. Incredibly Comfy.
Every Sealy Posturepedic® mattress is tested above and beyond industry standards to ensure you get the support you need to get better sleep for years to come.Shop Posturepedic®
Every mattress we make delivers comfort, quality, and support, with built-to-last materials like responsive innersprings and body-hugging memory foams. No matter your preference in features or level of support, you’ll find a great night’s sleep on a Sealy®.
Our classic Essentials™ Collection is engineered for a great night’s sleep, delivering trusted Sealy® quality at an affordable price.
Our Posturepedic® Collection features all the quality you expect from Sealy®, with trusted support, responsive coils, and a breathable, antibacterial cover.
Our signature Posturepedic® Plus Collection features our best-quality specialty foams, highest level of support, most advanced motion-absorbing coils, and all-over cooling comfort.
Over 140 Years of Comfort and Quality You Can Trust
Your best night’s sleep is our business—and it’s why we continually exceed industry testing standards to deliver quality, feel-good products that last a very, very long time.
Foundation & Bases
Give your new mattress a lift with the right base. Add one of these options to your bed and step up to a new level of comfort.
Ready to lie down and test a mattress?
Shop online or stop in today to talk to one of our sales associates.Shop Now