
Kingsdown Twin Xl High Profile Foundation
Will It Fit?
SKU: 50883478
You'll Love Kingsdown
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
Tempur-Pedic
This review was collected as part of a promotion
We bought a new tempur pedic mattress after having our old mattress for 15 yrs. I was experiencing back pain that I couldn’t get rid of. I tried everything. As soon as we got our new tempur pedic mattress, my back pain started to diminish immediately and now I no longer have back pain! I sleep much better in general too. I am so happy with our purchase and will never buy another type of mattress! Highly recommend!
Review provided by Sealy
Doesn’t work!!!!
This bed is great in concept but it doesn’t work!!!! It is hotter and has no airflow. Called for a service call and no response. The old Tempur-Pedic with cooling form is better - much better
Review provided by Sealy
I want to like it?
This review was collected as part of a promotion
It's pretty small. Maybe good as a travel pillow, but I find it kinda hard and not really memory foam feeling. They also stain really easily.
Review provided by Sealy
Good sleep
This review was collected as part of a promotion
I sleep great with this pillow. I bought it for me, and the wife was telling me it was too thick and a waste. Well when I get up in the morning to get ready for work and come back into the room she steals one lol. Good anniversary gift for her coming up
Review provided by Sealy
Terrible Customer Service
This review was collected as part of a promotion
Will not be buying and Tempurpedic products.
Review provided by Sealy
















