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Kingsdown Twin Xl High Profile Foundation

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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 out of 5 stars

Based on 5836 ratings
5
61%
4
11%
3
8%
2
6%
1
13%
Pillow snob

Lumpy

This review was collected as part of a promotion

You can feel the cubes of foam when laying on the pillow which is not pleasant for me.

Review provided by Sealy

Reviewed On Jul 6, 2026
Comfort

Good quality great construction

This review was collected as part of a promotion

This is the second one I have gotten as I got another temperpedic bed for our guest room.

Review provided by Sealy

Reviewed On Jul 6, 2026
Picky sleep

Very comfortable

This review was collected as part of a promotion

Ordering was easy, product was delivered.

Review provided by Sealy

Reviewed On Jul 6, 2026
Saved my back

Saved my back and saved my mattress

This review was collected as part of a promotion

My current mattress is only 5 years old but I found myself suddenly waking up to back pain. Went to bedding stores shopping and found that the new mattresses were too expensive but felt like my mattress but with a softer top. Long story short I decided to try this topper and it worked, I sleep better and wake up with no back pain. Saved thousands and the cooling surface is a great perk that I was not expecting. This worked for me.

Review provided by Sealy

Reviewed On Jul 6, 2026
Firm sleep

Excellent

It took a day or so, to get use to it. Now it's great for side & back sleepers. I've had several neck surgeries, so this pillow definitely fits the bill.

Review provided by Sealy

Reviewed On Jul 6, 2026
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