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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
stars
264 ratings264 reviews
  1. 5 stars79% (208)
  2. 4 stars15% (40)
  3. 3 stars3% (9)
  4. 2 stars1% (2)
  5. 1 star2% (5)
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Showing 41-50 of 264 reviews
Jul 10, 2026
Reviewer name: Noel E
5 out of 5 stars
5 out of 5 stars review

Comfy

Love the support and the foam is caressing!

Review from Serta
Helpful?5QG9W3640AJR15232504743
Oct 2, 2026
Reviewer name: Michael O
5 out of 5 stars
5 out of 5 stars review

Knox firm Queen

The 5 zones are nice.

Review from Serta
Helpful?5QG9W3640AJR15232504743
May 3, 2026
Reviewer name: Karen R
4 out of 5 stars
4 out of 5 stars review

New Mattress After 14 Years

Comfortable and Affordable

Review from Serta
Helpful?5QG9W3640AJR15232504743
Apr 28, 2026
Reviewer name: Shannon C
4 out of 5 stars
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
Helpful?5QG9W3640AJR15232504743
Apr 24, 2026
Reviewer name: Elona C
5 out of 5 stars
5 out of 5 stars review

My new bed

My mattress is comfortable and allows a good night rest.

Review from Serta
Helpful?5QG9W3640AJR15232504743
Apr 19, 2026
Reviewer name: Robert F
4 out of 5 stars
4 out of 5 stars review

Not light

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

Review from Serta
Helpful?5QG9W3640AJR15232504743
Apr 27, 2026
Reviewer name: Arturo R
5 out of 5 stars
5 out of 5 stars review

comfortable

excellent mattress very comfortable firm and soft

Review from Serta
Helpful?5QG9W3640AJR15232504743
Mar 15, 2026
Reviewer name: Michelle S
4 out of 5 stars
4 out of 5 stars review

Comfy

Comfy but need more support

Review from Serta
Helpful?5QG9W3640AJR15232504743
Apr 16, 2026
Reviewer name: Joseph B
5 out of 5 stars
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.

Review from Serta
Helpful?5QG9W3640AJR15232504743
May 19, 2026
Reviewer name: Anne R
5 out of 5 stars
5 out of 5 stars review

New Comfy Mattress

Love it! It is so comforting and relaxing…with lots of support!

Review from Serta
Helpful?5QG9W3640AJR15232504743