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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 21-30 of 229 reviews
Sep 18, 2025
Ronald W
5 out of 5 stars review

Straight No Chaser, Comfort Sleep!!

This mattress is, “da’ bomb!” Folks, if you think I’m fibbin’, get one! It seems to re-align sleeping posture, I miss work, on purpose to stay on this mattress! I removed the bedding to get model number for warranty- 10 years limited.

Review from Serta
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Jun 26, 2025
Eric T
5 out of 5 stars review

Great mattress - beautiful, well designed, and very comfortable

Love this mattress. Beautiful design and very comfortable. It has good support and a lovely cushioned top. Independent coil design with five comfort points is ingenious. We looked at every other brand, and this mattress was by far the best-designed and most competitively priced one we could find. Highly recommended.

Review from Serta
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May 14, 2026
Subhashkumar P
4 out of 5 stars review

Really great I enjoyed it

Great of restful sleep. Nice o can sleep on relax

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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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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Apr 24, 2026
Elona C
5 out of 5 stars review

My new bed

My mattress is comfortable and allows a good night rest.

Review from Serta
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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 16, 2026
Joseph B
5 out of 5 stars review

First Night Restful

I typically take days to adjust to a new mattress. The first night was very relaxing.

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Apr 19, 2026
Robert F
4 out of 5 stars review

Not light

So far seems cool im older and had to have help to move it

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Feb 1, 2025
Emankcin
5 out of 5 stars review

Verified Purchase

Very comfortable mattress for me. Firm but not too firm. No more back ache.

Review from Serta
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