
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.
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 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.
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.
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.
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 out of 5 stars
Ruins the mattress experience
We loved our new Tempur-Pedic mattress so naturally we bought the protector. The protector ruins the mattress because it is so ill fitting. It causes constant ripples and wrinkles in the sheet and negates the cooling component to the mattress. We have the king size- I do not recommend.
Review provided by Sealy
Very slippery!
We bought a couple TEMPUR-LuxeBreeze split-king mattresses recently and our salesperson recommended the TEMPUR-Breeze mattress protector. They're somewhat difficult to put on the mattress, since there are two large straps that go under the mattress to hold them in place. It took two of us to put them on. Once on, however, they stayed in place really well. Unfortunately, the top of the mattress protector is really slippery, so our sheets slide all over the place when we sleep on them. We have sheets with deep pockets, but because the mattress protector is so slippery, they come somewhat untucked and bunch up on top of the mattress. If you like your sheets to stay taut and smooth, you should probably avoid this mattress protector.
Review provided by Sealy
Love me bed
This bed has changed my sleeping pattern 100 percent, and I love it so very much I could have not ask for a better bed Things I love about is everything that I don't love about it is I should have been had this bed
Review provided by Sealy
Amazing Sheets
This review was collected as part of a promotion
These sheets are awesome. They keep you from sweating so for people going through menopause I highly recommend these
Review provided by Sealy
Cannot sleep without it
So thankful for this pillow. I can’t get comfortable with anything else!!!
Review provided by Sealy

