Kingsdown Twin Xl High Profile Foundation
SKU: 50883478
Kingsdown foundations are meticulously hand assembled using sustainably sourced Canadian Spruce, which is exceptionally durable. Each piece of lumber is not only heat-treated, but kiln-dried, which improves the performance of the wood over time. Each wooden slat is placed more closely together and cut a full inch wider than most manufacturers to provide a sturdier base.
Collection
Box Spring
Warranty
10 year limited warranty -
Code J -
View WarrantyColor
Black
Foundation height
9 inches
Pattern
Solid
Upholstery material
Fabric
Q&A answers generated with AI assistance.
Why is a solid foundation often preferred over a traditional box spring?
Unlike a traditional box spring that uses flexible wire coils, this solid wood foundation provides a completely flat, non-yielding surface. This rigid support is essential for modern memory foam and hybrid mattresses, as it ensures they stay perfectly level to provide correct spinal alignment and prevents the internal mattress materials from shifting or warping.
What is the benefit of a "high profile" 9-inch foundation?
A 9-inch high-profile foundation provides a traditional bed height, making it easier to get in and out of bed compared to lower-profile options. This height is ideal for standard bed frames and is a popular choice for larger master bedrooms where a taller bed profile creates a more substantial, elevated aesthetic.
Does this foundation require home assembly?
No, this foundation is meticulously hand-assembled by craftsmen before it reaches your home. It arrives fully built and ready for immediate use, allowing you to complete your bedroom setup without the need for tools or the hassle of complex instructions.
Why is kiln-dried Canadian Spruce used in this foundation’s frame?
This foundation is crafted from sustainably sourced Canadian Spruce that has been both heat-treated and kiln-dried. The kiln-drying process is a critical quality step that removes deep-seated moisture from the wood, significantly reducing the risk of warping, shrinking, or cracking over time. This expertise in material preparation ensures the frame remains structurally sound and silent throughout its lifespan.
How does the slat construction provide better support for a mattress?
To provide a sturdier base than standard models, the wooden slats in this foundation are cut a full inch wider and placed more closely together. This increased surface area offers superior reinforcement for your mattress, helping to prevent the sagging and dipping that can occur with less robust support systems, thereby extending the life of your mattress.
Can two of these foundations be used together for a split king bed?
Yes, two Twin XL foundations are the standard requirement for a King or Split King mattress setup. At 80 inches long, they provide the necessary extra length for "XL" mattresses. Placing two side-by-side creates a stable, 78-inch wide base that is much easier to navigate through narrow stairwells or apartment doorways than a single-piece king foundation.
39.00"w x 80.00"d x 9.00"h
4.1 out of 5 stars
Tempur-pedic mattress is the best!
This review was collected as part of a promotion
We loved our old tempur-pedic mattress that was 22 years old. We ordered another mattress that needed a new base. We are in the process of returning our new mattress for a firmer one. There is no mattress that can even measure up to temper-pedic mattress and proper base. We are anxiously waiting for the new one to arrive.
Review provided by Sealy
Not the worst pillow, not the best pillow
This review was collected as part of a promotion
We have big hopes for these pillows. Tempur-Pedic has an easy ordering process and the pillows were shipped in sturdy boxes to prevent crushing and moisture. I don’t know what material they used to make these pillows, but we couldn’t sleep on them the first night because of the smell. The company says it takes a couple of days. For us, it took about a month to get them to the point where we trusted ourselves to give them a shot. We sealed the pillows in our blanket bags with scented clothes dryer balls to help remove the materials odor. The worked best. Once you get beyond the air quality issue and actually sleep on them, they are pretty comfortable. I haven’t flipped them in the night because of hot spots and they are actually comfortable. I am a big guy, so the pillows supported my neck and head well. My wife is giving them a 4-star and we’re both still wondering if they are safe. The cooling effect seems to work as the entire pillow doesn’t get hot like our last pillows did. The company really needs to find another material that doesn’t smell like you are laying your head on a chemical plant. I live near the Houston, Texas ship channel area and I know what a chemical plant smells like and I’ve worked in polymers/plastic plant. The odor is all too familiar. We have high hopes, so if you have respiratory sensitivity issues, I’d skip this pillow. We’re crossing our fingers these pillows work as advertised.
Review provided by Sealy
Good quality and sheets stay cool
This review was collected as part of a promotion
Very nice sheets, durable quality and the sheets seem to stay cool.
Review provided by Sealy
Extraordinary product extraordinary results
This review was collected as part of a promotion
Very good pillow. I had neck pain for very long. Tried several pillows but it did not help. With 2 months usage of this Temper-cloud pillow, my neck pain is completely alleviated. Very happy with the pillow.
Review provided by Sealy
Fixed my back!!
This review was collected as part of a promotion
Tried one of these in a rental for a few months and was sold. My upper spine issue which was unsolvable for over two years went away. 2 docs looked at X-rays and told me it was natural wear/tear and to get used to it. Went back to my old mattress for a week when I returned home and my back issue returned. Bought a tempur pedic of my own and the back issue is gone and hasn’t returned for 2 months now!
Review provided by Sealy