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Kingsdown Twin Xl High Profile Foundation

Not available in your region

SKU: 50805551

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

Pattern

Solid

Profile height

High profile

Upholstery material

Upholstered

39.00"w x 80.00"d x 8.50"h

4.1 out of 5 stars

Based on 3648 ratings
5
64%
4
11%
3
8%
2
6%
1
11%
Lucky

Good Full Nught Sleep

This review was collected as part of a promotion

This is the best pillow that I have used. I could not have imagined that a pillow adds to a full night sleep without any neck pain.

Review provided by Sealy

Reviewed On Feb 20, 2026
Sheet Searcher

Poor fit and quality

This review was collected as part of a promotion

These sheets do not properly fit my mattress. They bunch up every night and are so thin I can see every detail of my mattress topper.

Review provided by Sealy

Reviewed On Feb 20, 2026
Tina

Sheets

This review was collected as part of a promotion

The sheets are fine, but not amazing. I bought them because it’s hard to find fitted sheets for a 13” deep mattress. They fit well, but I’d buy them again only if they were on sale.

Review provided by Sealy

Reviewed On Feb 20, 2026
Lucky

High Quality Product

This review was collected as part of a promotion

the 5-inch flat foundation that I purchased was of the highest build quality and works perfectly as intented.

Review provided by Sealy

Reviewed On Feb 20, 2026
James

It does not support the shoulders

This review was collected as part of a promotion

I tried to use one night and using CPAP, I have to sleep on my back. That said, it does not support your shoulders and results in a painful neck the next morning

Review provided by Sealy

Reviewed On Feb 20, 2026