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.
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.
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.
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.
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.
39.00"w x 80.00"d x 9.00"h
4.1 out of 5 stars
Very Uncomfortable
This review was collected as part of a promotion
While the pillow cooling feature is nice, it unfortunately hurt my neck for several days after using it. Disappointed they cannot be returned.
Review provided by Sealy
Perfect for us.
This review was collected as part of a promotion
We have an old Tempurpedic mattress that we love. We were thinking it was about time to get a new one but we didn’t think we could get anything like the original and didn’t know which model to get. Updating felt like a risk. Then I saw the topper. It seemed like a low cost way to experience the current product. We purchased the topper and found it very comfortable. It was the perfect addition to our current Tempurpedic. The fit is great and the straps to hold it in place do a reasonable job. Having a better idea of how the current technology feels, we will probably refresh in the future. But, now with the topper, we don’t have a sense of urgency, nor do we feel a great need. It has proven to be a great addition for us as a retired couple.
Review provided by Sealy
Not impressed with the firmness
This review was collected as part of a promotion
Was a little short on the sides, ordered Cal King which is what it is and the sides were short about 2-3 inches on each side.
Review provided by Sealy
Comfortable and Quality
This review was collected as part of a promotion
Very smooth and cool to the touch every night I jump into bed. Even after many washes it keeps its comfort and coolness.
Review provided by Sealy
Quality
This review was collected as part of a promotion
Very nice pillow. Definitely shaped to fit the head more naturally. Just a bit of a change for me, a bit of discomfort and I'm still getting used to it.
Review provided by Sealy

