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Customer reviews for Serta Perfect Sleeper X Knox Hybrid Mattress for
Serta Perfect Sleeper X Knox Hybrid Mattress
4.7 out of 5 stars
stars229 ratings229 reviews
  1. 5 stars79% (181)
  2. 4 stars16% (36)
  3. 3 stars3% (7)
  4. 2 stars0% (1)
  5. 1 star2% (4)

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Showing 31-40 of 229 reviews
Apr 27, 2026
Arturo R
5 out of 5 stars review

comfortable

excellent mattress very comfortable firm and soft

Review from Serta
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Apr 28, 2026
Shannon C
4 out of 5 stars review

New firmness

Firm & supportive where I need it and still comfortable enough to sleep on my side..

Review from Serta
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May 3, 2026
Karen R
4 out of 5 stars review

New Mattress After 14 Years

Comfortable and Affordable

Review from Serta
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Feb 25, 2026
Allan C
5 out of 5 stars review

Great support and comfort for us side sleepers

So far our decision to replace our old Serta Icomfort Applause II was a good one. Very supportive, and provides a better night’s sleep.

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Mar 27, 2026
Trent W
5 out of 5 stars review

Nice mattress

Firm but not extra firm with some top foam. It's nice!

Review from Serta
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Mar 21, 2026
Wayne W
5 out of 5 stars review

Excellent mattress

We like the mattress very much

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Apr 12, 2026
Marc G
4 out of 5 stars review

Comfortable

Comfy mattress, I don’t like the blue floral color fabric, only draw back.

Review from Serta
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Mar 15, 2026
Michelle S
4 out of 5 stars review

Comfy

Comfy but need more support

Review from Serta
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Jan 10, 2026
Henry D
5 out of 5 stars review

So far only 2 nights in

So far so good. Went from queen to king. Plenty of room now for the 2 of us. Seems to be doing it's job.

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Oct 13, 2025
Barbara E
3 out of 5 stars review

Adjustable bed

I like the bed but unhappy that I cannot use my head board and it is difficult to keep the top sheet secured.

Review from Serta
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