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Kingsdown Twin Xl High Profile Foundation

Not available in your region

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 Warranty

Color

Black

Foundation height

9 inches

Pattern

Solid

Upholstery material

Fabric

39.00"w x 80.00"d x 9.00"h

4.1 out of 5 stars

Based on 4309 ratings
5
63%
4
11%
3
8%
2
6%
1
12%
Ouch! My neck!

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

Reviewed On Mar 21, 2026
Long term customer, full night sleeper

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

Reviewed On Mar 21, 2026
Bren

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

Reviewed On Mar 21, 2026
SleepWell

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

Reviewed On Mar 21, 2026
SleepWell

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

Reviewed On Mar 21, 2026