IN STOCK
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
A non-refundable $309 risk, don't take it!
While I take responsibility for missing the fact that this item was non-returnable, I am surprised that a company with a "zero-waste" claim produces such an inferior quality product. This protector feels like a crinkly, thin plastic sheet, reminiscent of a crib mattress protector. Despite being marketed for its cooling properties, it does not feel cool to the touch. The fit is poor; the cover does not fit tight to the mattress, the extra straps are ineffective, and the cover feels slippery as you move around. Since this protector is unusable and non-returnable, it is unfortunately headed straight to the landfill.
Review provided by Sealy
Sheets feel like sandpaper against our skin
I’ve been buying sheets from Tempurpedic for years. Everyone in my family loves our sheets we have bought over the years but the ProAir is subpar. I would recommend buying something else especially for the price.
Review provided by Sealy
Hard to Buy Online
This review was collected as part of a promotion
I ordered this product online and new after one night that it wouldn't work for me. Unfortunately pillows are not returnable, so I'm out the cost of the pillow. I understand why the policy exists, but it will prevent me from ever ordering again.
Review provided by Sealy
Bunches up - it's awful
I bought this with a Tempur Adapt mattress and it's the worst mattress cover I've ever had. Being a Tempur product, I thought it would be a premium product, but it bunches up and has huge wrinkles no matter how many times I try to tuck it under. Zero stars, do not recommend if you have the Adapt mattress that is only 9 or 10 inches deep. It would probably be fine on mattresses that are much deeper, just not on the mattress I bought.
Review provided by Sealy
Feels great, works great.
This review was collected as part of a promotion
It s a departure from the spring mattress and a welcome one at that. I feel more rested when I sleep in this bed and less sore in the mornings. My sleep is less disturbed as well and the sleep tracker tells me if it's been bad.
Review provided by Sealy